Metal detector military imp reviews. Engineering property of the Soviet army
Design
The kit is placed in a non-dismountable, reusable wooden box with overall dimensions of 940x450x335 mm.
The weight of the set is no more than 50 kg.
The designs of the components of "KR-i" ensure repeated use (at least 15 times) with the exception of cases of their destruction during detonation.
The warranty period is 1 year from the date of start of operation within the warranty storage period set at 3 years.
The "KR-i" set includes:
INDUCTION SEMICONDUCTOR MINE DETECTOR, IMP
TECHNICAL DESCRIPTION AND OPERATING INSTRUCTIONS
RB2. 471.003 TO Ed. 2-65
PART I
TECHNICAL DESCRIPTION
PURPOSE
The semiconductor induction mine detector for individual use IMP is designed to search for anti-tank and anti-personnel mines installed in the ground (snow), the casings or fuses of which are made of metal. The mine detector allows you to detect mines installed in bushes, grass and fords.
TECHNICAL DATA
1. Depth of detection by a mine detector of mines installed in the ground (snow), cm, not less:
a) anti-tank mine TM-46...... 40
b) anti-tank mine TMD-B..........12
c) anti-personnel mine PMD-6 with a metal fuse MUV................8
2. Width of the mine search zone with a mine detector, cm:
a) for the TM-46 mine, not less...... 30
b) for TMD-B mine........ 20±5
c) for the PMD-6 mine........ 20±5
3. The mine detector allows you to search for mines in water by immersing the search element to a depth of m. up to 1
4. Residual voltage level, mV, no more. . 80
5. Stable operation of the mine detector without adjustment, min., not less than 10
6. Distance between two working mine detectors, m, not less...................7
7. Current sources-elements 373 GOST 12333-74 with a total voltage from 5.0 to 6.2 V, pcs. ... 4
8. Duration of continuous operation with one set of current sources, h, not less....... 100
9. Operating temperature range, K from 243 to 323
10. Total mass of the mine detector, kg, no more... 6.6
11. Weight of the search system, kg, no more.... 2.4
8. PRODUCT COMPOSITION
The mine detector includes the following main elements and components:
1. Search element.........1 pc.
2. Amplifier unit..........1 pc.
3. Barbell (three elbows)........1 pc.
4. Headphones..........1 pc.
5. Bag...............1 pc.
6. Stowing case..........1 pc.
7. Belt...............1 pc.
8. Equivalent setting.........1 pc.
9. Screwdriver............1 pc.
10. Sanding paper (10 cm2).......1 pc.
11. Technical description and operating instructions. . 1 copy
12. Form............1 copy:
Elements 373 GOST 12333-74 are not supplied by the factory.
4. DEVICE AND OPERATION OF THE PRODUCT
The search element of the mine detector contains two receiving and one generating coils. The receiving coils are located in the electromagnetic field of the generator coil so that the total e.g. D; i.e., induced in them, is approximately equal to zero.
To compensate for the voltage imbalance of the receiving coils due to changes in temperature and the nature of the environment, a phase-amplitude compensator is used.
A change in the connection between the generator and receiving coils of the search element when metal objects are introduced into the field of the generator coil causes an imbalance signal, which is amplified by an amplifier and listened to in telephones.
CONSTRUCTION OF COMPONENT PARTS OF THE PRODUCT
Search element
The search element is a frame in the grooves of which a generator and two receiving coils are installed. A generator loop capacitor is located at one end of the frame.
ATTENTION! Protect the search element from impacts.
Search element framework fig. 2 is placed in a casing 6, which protects it from mechanical damage. The casing consists of two parts, glued in the middle, and is closed with a union nut 3. A seal is installed under the union nut between the casing and the frame.
The threaded part of the union nut is coated with moisture-resistant lubricant.
The search element is connected to the amplifier unit by cable 2 with an SR connector insert.
The search element is connected to the holder 4 using a clamp 5 covering the casing.
To eliminate the influence of the metal rod on the search element, the holder is made of textolite.
The location of the clamp on the casing is strictly fixed, which corresponds to the least influence of the metal parts of the rod on the operation of the search system.
ATTENTION! Install the search element frame into the casing with the mark towards the holder.
ATTENTION! Disassembling the search element in the field is unacceptable.
5.2. Amplifier block
Amplifier block fig. 3 consists of two parts: a aluminum base 10 with a top cover 3 and a steel box 11 with a hinged bottom cover 15.
On the base there is a board 16, on which elements of the generator and amplifier are mounted, and potentiometers of the phase-amplitude compensator 9, there is a compartment for current sources.
On the top cover 3 there are:
ShR 20 connector block for connecting the search element cable to the amplifier unit;
Cap 5, which is screwed onto the Shp 20 connector block when not in use and serves to protect connector parts from damage, contamination and moisture;
Telephone sockets 6, into which the telephone plug is inserted during operation;
Toggle switch 7 for turning on and off current sources;
Two knobs 8 of the compensator, used to fine-tune the mine detector.
The axes of two potentiometers for coarse adjustment of the phase-amplitude compensator 9 are brought out through cover 3 under the slot.
The base is fastened to the box using two screws 4. Carabiners 12 are installed on the side walls of the box, which are used to secure the shoulder strap when working with a mine detector without a canvas bag.
The box has a hinged bottom cover 15, connected to it using a hinge and lock 13. The bottom cover is designed for access to the current source compartment and for connecting current sources to each other using a contact spring 14.
A rubber seal 2 is installed between the top cover and the base. A seal is also installed on the bottom cover. For ease of use, the amplifier unit is placed in a canvas bag.
5.3. Barbell
For ease of transportation and the ability for the sapper to work in a “lying” or “standing” position, the rod is made collapsible and consists of three elbows made of duralumin pipes. The joint of the rod elbows with each other and with the search element holder is threaded.
5.4. Stowing case
The storage case is made of duralumin and is designed to accommodate all components of the mine detector during transportation and carrying. The lid is attached to the case with a hinge and is closed with two tension locks. To secure the mine detector units, brackets are installed inside the stowage case. The packing case is designed to be carried in the hands and behind the back.
PROCEDURE FOR OPERATING THE MINE DETECTOR
Holding the search element by the bar and continuously moving it in front of you to the right and left, move forward in a given direction. In this case, it is necessary to ensure that the search element moves parallel to the ground surface at a distance of 5 to 7 cm from it. When moving along the reconnaissance strip, the sapper must move the search element forward no more than half its length, and it is necessary to carefully ensure that the entire area of the reconnaissance area is examined by the mine detector.
Having heard a signal in the phones (the appearance of the main tone), the sapper must stop and clarify the location of the mine.
Depending on the task at hand, he must either begin removing the mine or mark its location.
To determine the location of the mine, the search element must be carefully moved forward, where the appearance of the signal was recorded, until a minimum sound is received in the phones. If, with further slight movement of the search element forward or backward, the signal in the phones increases, then the mine is located under the center of the search element. If, when moving the search element forward, the signal in the phones does not increase, then it is necessary, by moving the search element backward, to determine the location of the mine using the same method.
The mine is under the center of the search element only when moving it forward or backward the signal in the phones increases.
As necessary, the mine detector should be adjusted, achieving the minimum volume of the main tone.
It should be remembered that the sensitivity of a mine detector is determined by the thoroughness of its settings.
In all other respects, strictly follow the requirements of the instructions on safety measures when clearing mines.
ATTENTION! Small metal masses (fuzes) can cause a weak signal to appear, so when searching, the sapper must pay special attention to recording these signals.
Features of operating a mine detector when searching fords
When clearing fords, the mine detector is assembled to work in a standing position."
The length of the belt of the bag with the reinforcement unit must be adjusted so that the bag does not touch the water.
The assembled mine detector is adjusted in the usual manner on land, and then when the search element is lowered into the water to a depth of 1 m, the mine detector is adjusted.
When setting up a mine detector in water, the search element must be removed from the ground at a distance of 10 to 20 cm.
ATTENTION! Before lowering the search element into the water, it is necessary to tighten the union nut completely to prevent water from entering.
(sixties of XX - beginning of XXI century)
Mine detector IMP
The IMP mine detector is designed to detect objects made of ferrous or non-ferrous metals or products containing metal objects located in the ground, snow, under water and behind other obstacles made of non-magnetic materials.
To be precise, this is not a mine detector as such (that is, it does not look for mines themselves as such), but a metal detector, or, as it is now fashionable to say (however, more correctly) - a metal detector. However, since almost all mines, to a greater or lesser extent, contain metal products, this metal detector can quite reasonably be called a mine detector.
The IMP semiconductor mine detector of induction type consists of: 1. A cylindrical search element with a connecting cable, a rotary unit and a shortened rod;
2. Three extension rods with spring clips to secure the cable. Two rods have internal threads for connecting to each other, and one has threads on only one side;
3. An amplifier unit, which is also a container for power supplies;
4. A canvas bag with a shoulder strap, designed for carrying an amplifier unit and headphones (headphones);
5. Headphones;
6. Packing box (transport packaging). The search element is made of impact-resistant plastic and is a hermetically sealed cylinder, inside of which there is a generator and two receiving coils. The generator coil, receiving power from the amplifier unit, creates an alternating magnetic field, and two receiving coils, under the influence of this field, generate a signal. In the absence of metal objects in the magnetic field, the signals of both receiving coils are equal in magnitude and opposite in phase. The resulting signal is zero. Distortion of the magnetic field, due to the entry of a metal object into it, causes a mismatch of the receiving coils and the signal becomes non-zero. Depending on weight
For ease of use of the mine detector, a clamp with a screw and a ratchet is placed on the search element. The lower end of the shortened rod is attached to the screw.
This allows you to adjust the position of the search element relative to the rod. In order to ensure an accurate determination of the location of a metal object, the middle of the search element has a slight thickening, which is usually painted white (optional). The signal in the headphones reaches its maximum when this particular place is located above the center of mass of the mine being searched.
The search element is completely sealed and allows immersion in water to a depth of 10 meters (this is if you do not take into account the length of the cable, which in the IMP is 1.8 m long).
In the photo on the left is an IMP mine detector assembled for operation in a prone position. The amplifier unit is designed to accommodate batteries (four
galvanic element type "373" (Mars)), generating voltage for the generator coil, receiving and processing the signal, transmitting the signal to headphones, turning the mine detector on and off, and setting up the mine detector.
The mine detector is adjusted by alternating rotation of the ratchet bars in order to make the sound signal disappear in the headphones (i.e., by rotating the ratchet bars, the operation of the receiving coils is coordinated). If it is not possible to completely disappear the signal by rotating the ratchet, then by rotating the coarse adjustment screws with a screwdriver, the signal is weakened, after which, by rotating the ratchet, the signal disappears completely.
The amplification block is made of duralumin and is sealed. The seal provides protection from rain, dirt and short-term immersion in water. On the sides of the block there are usually hooks for attaching a shoulder strap, which allows you to carry the block over your shoulder without a bag.
Some series of blocks also have a hook on one of the sides, which allows you to attach the block to the sapper's waist (trouser) belt.
The canvas bag is designed to carry the amplifier unit while working with the mine detector and headphones (when the mine detector is If no metal objects are detected, then only a low, weak background tone (rustling) is heard in the headphones. When metal appears in the detection zone, a high tone (whistle) appears in the headphones, which intensifies as the search element in the object approaches. The sound reaches its maximum when the center of the search element is above the center of mass of the mine, and as the search element moves away from the mine, the sound weakens. This allows you to determine the size of the object, its exact location and depth.
The transport box is designed to contain all the components of the mine detector (batteries in the amplifier unit) and carry the mine detector to the place of work. A suitcase-type handle serves this purpose. In addition, on one of the planes of the box there are hooks for attaching belts and straps, which allows you to carry the mine detector in the box behind your back like a backpack.
In the photo on the right is an IMP mine detector assembled for standing operation.
To use a mine detector you must:
- remove the components from the box, screw the rods to work standing or lying down;
- secure the cable in the clamps of the rods and screw it to the connector of the amplifier unit;
- open the bottom cover of the amplifier unit and insert batteries into it; close the lid;
-put a canvas bag over your shoulder and put a reinforcement unit into it;
- put headphones on your head and insert the headphone plug into the socket of the amplifier unit;
-turn on the toggle switch;
- by alternately rotating the adjustment ratchet, ensure that only a faint rustle is heard in the headphones;
- bring the search element to a metal object and make sure that a whistle appears in the headphones and that the sensitivity of the search element corresponds to the norm (the mine detector must detect its transport box from a distance of at least 40 cm, usually 50-70 cm); -search is carried out by holding the search element parallel to the ground at a height of 5-7cm. from the surface; use the search element to describe an arc in front of you in a sector of 120-130 degrees from left to right or right to left, then move forward the length of the search element and describe the arc again; when a signal appears, move the search element left-right-forward-back to clarify the location of the detected object and, based on the strength of the signal, its duration at the moment of movement, identify the object;
-periodically, when a weak, steady whistle appears in the headphones, adjust the mine detector.
Tactical and technical characteristics of the IMP mine detector
For working underwater at depths of up to 10-15 m, there is a diving version of the mine detector under the MIV brand. It differs from the basic model in that the tuning ratchet is located on a rod (only one extended rod), the amplification unit is placed on the diver’s chest under the suit, and in the upper part of the rod there is a cuff for securing the rod to the forearm of the diver’s right hand. The complete set is 11 kg, the checked bottom area per hour is 100-120 sq.m. Otherwise, MIV is no different from UTI.
IMP mine detectors, according to the staff lists, are supplied in engineering platoons with 9 units each, in other platoons of engineering troops with 3 units each, in motorized rifle and tank companies with 3 units each, in artillery batteries of artillery units with 3 units each -that, in parachute companies there is 1 unit each.
P.S. In recent years, quite a lot of sarcastic reviews have appeared on a number of forums about the qualities of the IMP and comparing it with the latest metal detectors. Naturally, not in favor of UTI. You could also compare the combat characteristics of the I-16 and Su-37 fighters. Or BT-7 and T-90 tanks.
Every vegetable has its time. IMP was created in the mid-sixties of the 20th century and for almost 50 years could not help but become outdated. In general, it’s great that the IMP has not yet sunk into the section of forgotten weapons. This means that they are still used in some places. And this says a lot.
February 2013.
Sources
1. IMP semiconductor mine detector. TO and IE.
Representative of customer No. 359. 1969
2. B.V.Varenyshev et al. Military engineering training. Tutorial. Voenizdat. Moscow. 1982
3. US Army Field Manual FM 20-32. Mine/Contermine Operations. Headquarters, Department of the Army, Washington, DC, 30 June 1999. Change 08/22/2001. Appendix F.
The portable induction mine detector IMP-2 is designed
for searching in soil of varying humidity, in snow and water for anti-tank and anti-personnel mines, and other explosive objects with metal or plastic casings and containing metal parts. A mine detector can be used in various situations in peacetime and wartime for reconnaissance of minefields, making passages in them and completely clearing the area of mines. In addition, if necessary, IMP-2 can be used to search for other metal objects.
Compound:
The IMP-2 mine detector consists of:
Search element (rectangular shape in the form of a frame with 2 gaps)
Prefabricated three-knee barbell
Amplifier block
Signal processing unit with connecting cables (toggle switch with on/off, sensitivity adjustment knob, male connector, connector for connecting cables.)
External power supply (connected to telescopic rods)
Carrying bags, for external power supply, soft case
Detection depth depending on the size of the search object:
PTM – 50 cm
zone width:
detection area:
standing – 300 m2/h
lying down – 150 m2/h
strip width – up to 2 m (in reality – 1.7 m)
The total weight in working condition is no more than 2 kg.
per package -8 kg
Power is supplied autonomously from batteries built into the device or R6 type batteries (element 343 - 6 pieces) with a total voltage of 9 V.
The metal detector remains operational at ambient temperatures from -50 C to +50 C.
The procedure for preparing for work.
Deploy the IMP-2 mine detector. Set the POWER toggle switch to the OFF position, the control knob to the left position (minimum sensitivity). Keep the mine detector sensor no closer than 0.5 m from the ground and no closer than 1 m from metal objects.
When the POWER switch is set to ON. there should be a sound signal of two to four tone sequences lasting 3-4 s (auto-compensation process), then short clicks with a frequency of 3 s; if there are no clicks, replace the power supplies.
Check the sensitivity as follows: 3-4 s after the auto-compensation process, bring the probe with its pointed end to the center of the sensor at a distance of 20-30 cm (several times) - there should be a detection signal.
Set the maximum sensitivity for a given type of soil in the area being surveyed, for which set the regulator knob to the maximum right position in which approaching the sensor to the ground until it touches does not result in a sound signal.
During operation, the mine detector sensor moves left and right at a speed of 0.1-1 m/s parallel to the ground surface, at a distance of up to 5 cm from it. After each swing, the sensor moves forward at a distance of up to 20 cm. The fact that a mine is detected is accompanied by a sound signal. The frequency of the signal is proportional to the size and weight of the metal parts of the mine and inversely proportional to the distance from the mine to the search element sensor.
To clarify the location of a detected mine, you must: stop; raise the sensor so that the tone of the sound signal becomes lower; without changing the height, move the sensor and find its position where the pitch of the signal will be maximum (the search object is under the center of the sensor).
Army metal detector
Army metal detector
1. A cylindrical search element with a connecting cable, a swivel unit and a shortened rod;
The search element is made of impact-resistant plastic and is a hermetically sealed cylinder, inside of which there is a generator and two receiving coils. The generator coil, receiving power from the amplifier unit, creates an alternating magnetic field, and two receiving coils, under the influence of this field, generate a signal. In the absence of metal objects in the magnetic field, the signals of both receiving coils are equal in magnitude and opposite in phase.
The resulting signal is zero. Distortion of the magnetic field, due to the entry of a metal object into it, causes a mismatch of the receiving coils and the signal becomes non-zero. Depending on the mass of the object and the distance to it, the signal strength changes.
For ease of use of the mine detector, a clamp with a screw and a ratchet is placed on the search element. The lower end of the shortened rod is attached to the screw. This allows you to adjust the position of the search element relative to the rod. In order to ensure an accurate determination of the location of a metal object, the middle of the search element has a slight thickening, which is usually painted white (optional). The signal in the headphones reaches its maximum when this particular place is located above the center of mass of the mine being searched.
The search element is completely sealed and allows immersion in water to a depth of 10 meters (this is if you do not take into account the length of the cable, which in the IMP is 1.8 m long).
2. Three rods with special spring brackets for securing the cable.
Extension rods provide the ability to assemble the mine detector for operation while standing or lying down. In the first case, all three rods are used, and in the second, only one (final).
3. An amplifier unit, which is also a container for power supplies;
The amplifier unit is designed to house batteries (four galvanic elements of type "373" (Mars)), generate voltage for the generator coil, receive and process the signal, transmit the signal to headphones, turn the mine detector on and off, and configure the mine detector.
The mine detector is adjusted by alternating rotation of the ratchet bars in order to make the sound signal disappear in the headphones (i.e., by rotating the ratchet bars, the operation of the receiving coils is coordinated). If it is not possible to completely disappear the signal by rotating the ratchet, then by rotating the coarse adjustment screws with a screwdriver, the signal is weakened, after which, by rotating the ratchet, the signal disappears completely.
The amplification block is made of duralumin and is sealed. The seal provides protection from rain, dirt and short-term immersion in water. There are usually hooks on the sides of the block for attaching through a shoulder strap, which allows you to carry the block over your shoulder without a bag. Some series of blocks also have a hook on one of the sides, which allows you to attach the block to a sapper's waist (trouser) belt
.
Amplifier block and container for IMP power supplies
4. Separate bag for carrying the amplifier unit and headphones
Headphones are used to indicate a detected metal object. When there are no metal objects in the detection zone, only a low, weak background tone (rustling) is heard in the headphones. When metal appears in the detection zone, the search element in the object approaches as close as possible. The sound reaches its maximum when the center of the search element is above the center of mass of the mine, and as the search element moves away from the mine, the sound weakens. This allows you to determine the size of the object, its exact location and depth.
5. Headphones - Headphones
6. Packaging - transport box
The transport box is designed to contain all the components of the mine detector (batteries in the amplifier unit) and carry the mine detector to the place of work. A suitcase-type handle serves this purpose. In addition, on one of the planes of the box there are hooks for attaching belts and straps, which allows you to carry the mine detector in the box behind your back like a backpack.
Transport boxUTI
Assembly of an army metal detector:
- remove the IMP from the packaging and connect the component parts;
- secure the cable in the rod clamps and connect it to the amplifier unit;
- We insert the batteries into the amplifier unit and secure the unit into the carrying bag
- connect the headphones to the amplifier unit.
- press the toggle switch to turn on;
Setting up IMP:
The setting is carried out by alternating rotation of the ratchet, achieving only a faint rustle in the headphones, after testing we bring it to the search element - a metal object, a whistle appears in the headphones.
How the search was carried out using IMP
- Holding the search element parallel to the ground at a height of 5-7 cm. from the surface;
- use the search element to describe an arc in front of you in a sector of 120-130 degrees from left to right or from right to left,
- then move forward the length of the search element and describe the arc again;
- when a signal appears, move the search element left-right-forward-back to clarify the location of the detected object and, based on the strength of the signal, its duration at the moment of movement, identify the object;
Pros of an army metal detector- This simplicity use at work. Any soldier, after a little training, could cope with IPM. Reliability was also up to par, the full setup only needed to be done once, because... It is very simple and practically does not go astray, even when changing batteries.
Significant disadvantages of UTI - weight, when assembled, the mine detector weighs 6 kg, so after working with it for 2-3 hours, the operator-soldier will lead the search element along the ground, at the risk of being blown up by a mine.
At the same time, the deep characteristics of the IMF at that time were very good, detection depth anti-tank mines of the M15 type - up to 40 cm, and anti-personnel mines of the M14 type - up to 8 cm. Also a plus it could be submerged in water up to 1-1.2 meters. Despite all this, he was very economical One set of batteries lasted more than 80 hours.
IMP is an outdated model, in the late 80s the IMP was withdrawn from service
TECHNICAL DESCRIPTION AND OPERATING INSTRUCTIONS
PART I. TECHNICAL DESCRIPTION
1. PURPOSE
The semiconductor induction mine detector for individual use IMP is designed to search for anti-tank and anti-personnel mines installed in the ground (snow), the casings or fuses of which are made of metal.
The mine detector allows you to detect mines installed in bushes, grass and fords.
2. TECHNICAL DATA
1. Depth of detection by a mine detector of mines installed in the ground (snow), cm, not less:
a) anti-tank mine TM-46 ...... 40
b) anti-tank mine TMD-B..... 12
c) anti-personnel mine PMD-6 with a metal fuse MUV........ 8
2. Width of the mine search zone with a mine detector, cm:
a) for the TM-46 mine, not less...... 30
b) for TMD-B mine........ 20±5
c) for the PMD-6 mine........ 20±5
3. The mine detector allows you to search for mines in water by immersing the search element to a depth, m.. up to 1
4. Residual voltage level, mV, no more.. 80
5. Stable operation of the mine detector without adjustment, min., not less than 10
6. Distance between two working mine detectors, m, not less......... 7
7. Current sources - elements 373 GOST 12333-74 with a total voltage from 5.0 to 6.2 V, pcs. ... 4
8. Continuous operation period with one set of current sources, h, not less....... 100
9. Operating temperature range, K from 243 to 323
10. Total mass of the mine detector, kg, no more... 6.6
11. Weight of the search system, kg, no more.... 2.4
3. PRODUCT COMPOSITION
The mine detector includes the following main elements and components:
1. Search element..... ... 1 pc.
2. Amplifier block.... 1 pc.
3. Barbell (three elbows) 1 pc.
4. Headphones... 1 pc.
5. Bag..... 1 pc.
6. Stowing case......... 1 pc.
7. Belt...... 1 pc.
8. Equivalent to setting.... . 1 PC.
9. Screwdriver...... pcs.
10. Sanding paper (10 cm 2). 1 PC.
11. Technical description and operating instructions 1 copy.
12. Form............1 copy.
Elements 373 GOST 12333-74 are not supplied by the factory.
Rice. 1. Product composition
1 - search element; 2 - amplifier block; 3 - rod (three knees); 4 - head phones; 5 - bag; 6 - packing case; 7 - belt; 8 - equivalent setting; 9 - screwdriver.
4. DEVICE AND OPERATION OF THE PRODUCT
The search element of the mine detector contains two receiving and one generating coils. The receiving coils are located in the electromagnetic field of the generator coil so that the total e.g. d.s. induced in them is approximately equal to zero.
To compensate for the unbalance voltage of the receiving coils due to changes in temperature and the nature of the environment, a phase-amplitude compensator is used.
A change in the connection between the generator and receiving coils of the search element when metal objects are introduced into the field of the generator coil causes an imbalance signal, which is amplified by an amplifier and listened to in telephones.
5. CONSTRUCTION OF COMPONENT PARTS OF THE PRODUCT
5.1. Search element
The search element is a frame in the grooves of which a generator and two receiving coils are installed. At one end of the frame there is a loop capacitor for the generator.
ATTENTION! Protect the search element from impacts.
Search element framework fig. 2 is placed in a casing 6, which protects it from mechanical damage. The casing consists of two parts, glued in the middle, and is closed with a union nut 3. A seal is installed under the union nut between the casing and the frame.
The threaded part of the union nut is coated with moisture-resistant lubricant.
The search element is connected to the amplifier unit by cable 2 with an SR connector insert.
The search element is connected to the holder 4 using a clamp 5 covering the casing.
To eliminate the influence of the metal rod on the search element, the holder is made of textolite.
Rice. 2. Search element
1 - insert of connector ШР20; 2 - cable; 3 - nut; 4 - holder; 5 - clamp; 6 - casing.
The location of the clamp on the casing is strictly fixed, which corresponds to the least influence of the metal parts of the rod on the operation of the search system.
ATTENTION! Install the search element frame into the casing with the mark towards the holder.
ATTENTION! Disassembling the search element in the field is unacceptable.
5.2. Amplifier block
Amplifier block fig. 3 consists of two parts: a duralumin base 10 with a top cover 3 and a steel box 11 with a hinged bottom cover 15.
On the base there is a board 16, on which elements of the generator and amplifier are mounted, and potentiometers of the phase-amplitude compensator 9, there is a compartment for current sources.
On the top cover 3 there are:
ShR 20 connector block for connecting the search element cable to the amplifier unit;
Cap 5, which is screwed onto the Shr 20 connector block when not in use and serves to protect connector parts from damage, contamination and moisture;
Telephone sockets 6, into which the telephone plug is inserted during operation;
Toggle switch 7 for turning on and off current sources;
Two knobs 8 of the compensator, used to fine-tune the mine detector.
The axes of two potentiometers for coarse adjustment of the phase-amplitude compensator 9 are brought out through the cover 3 under the slot.
The base is fastened to the box using two screws 4. Carabiners 12 are installed on the side walls of the box, which are used to secure the shoulder strap when working with a mine detector without a canvas bag.
The box has a hinged bottom cover 15, connected to it using a hinge and lock 13. The bottom cover is designed for access to the current source compartment and for connecting current sources 14 to each other using a contact spring.
Rice. 3. Amplifier block
1 - compartment of current sources; 2 - seal; 3 - top cover; 4 - screw; 5 - cap; 6 - socket; 7 - toggle switch; 8 - handle; 9 - phase-amplitude compensator; 10 - base; 11 - box; 12 - carbine; 13 - lock; 14 - spring; 15 - bottom cover; 16 - fee.
A rubber seal 2 is installed between the top cover and the base. A seal is also installed on the bottom cover. For ease of use, the amplifier unit is placed in a canvas bag.
5.3. Barbell
For ease of transportation and the ability of the sapper to work in a “lying” or “standing” position, the rod is collapsible and consists of three elbows made of duralumin pipes. The joint between the rod elbows and with the search element holder is threaded.
Rice. 4. Barbell
5.4. Stowing case
The storage case is made of duralumin and is designed to accommodate all components of the mine detector during transportation and carrying. The lid is attached to the case with a hinge and is closed with two tension locks. To secure the mine detector units, brackets are installed inside the stowage case.
Rice. 5. Stowing case
The packing case is designed to be carried in the hands and behind the back.
PART II. USER MANUAL
The IMP mine detector is operated by one person during operation.
1. DEPLOYING THE MINE DETECTOR FOR WORK IN A STANDING POSITION
To assemble the mine detector, you must do the following:
Open the cover of the storage case;
Remove from the packing case: telephone, canvas bag, search element with holder, amplifier block, three rod elbows;
Close the lid of the storage case;
Assemble the rod elbows, screw them to the search element holder;
Loosen the swivel connection between the search element clamp and the holder by turning the nut counterclockwise;
Set the required angle of inclination of the rod relative to the search element and tighten the nut until it stops;
Insert the cable into the grooves of the clamps on the rod;
Install current sources;
Place the amplifier unit in a canvas bag;
Put the canvas bag on your right shoulder, with the connecting cable behind your back, adjust the length of the belt, connect the cable to the amplifier unit;
Put on the phones and connect them using a plug to the amplifier unit;
Set the toggle switch to the “ON” position;
Set up the mine detector and check its performance using the equivalent settings.
2. DEPLOYING THE MINE DETECTOR FOR WORKING IN A LYING POSITION
The procedure for assembling a mine detector for operation in a "lying" position is the same as for assembling a mine detector for operation in a "standing" position.
Characteristic features of the assembly:
the search element and the holder are attached parallel to each other, the canvas bag is attached to the waist belt; a rod elbow with a plug is attached to the holder.
Rice. 6. General view of the IMP device for working in a standing position
3. ROLLING UP THE MINE DETECTOR
After working with the mine detector you must:
Set the toggle switch to the "OFF" position;
Disconnect the cable connector insert and the telephone plug from the amplifier unit;
Remove phones;
Screw the cap onto the connector block;
Disconnect the cable from the rod;
Disassemble the bar;
Loosen the nut and turn the holder to its original position parallel to the search element; remove the amplifier unit from the canvas bag; - remove current sources;
Clean the mine detector elements from dust, dirt and moisture and place them in the storage case; - close the lid of the storage case.
Rice. 7. General view of the IMP device for working in the “lying” position
ATTENTION! Rotating the holder without first loosening the nut will result in breakage of the parts connecting the search element to the holder.
4. INSTALLATION OF CURRENT SOURCES
Install current sources in the following sequence:
Open the bottom cover of the amplifier unit;
Install current sources in the compartment according to the diagram indicated on the bottom cover of the unit.
Close the bottom cover of the unit.
ATTENTION! If the power sources are installed incorrectly, the mine detector will not work.
After completion of work, remove the power sources and store them separately.
5. CONFIGURING THE MINE DETECTOR
After installing the current sources and assembling the mine detector, configure it, for which: take the mine detector in your right hand and, holding it above the ground at a height of 10 to 12 cm, with your left hand alternately slowly rotate the compensator knobs of the amplifier unit until the fundamental tone disappears in the phones.
In this case, only a weak control tone of a higher frequency or noise should be heard in the phones.
Check the operation of the mine detector by approaching the search element of the equivalent setting at a distance of 10 cm. In this case, the sound of the main frequency should appear in the phones.
With temperature differences from 243 to 323 K, compensation may be lost. In this case it is necessary:
Set the axes of the fine-tuning potentiometers to the middle position and compensate using the coarse-tuning potentiometers.
ATTENTION! When setting up a mine detector, the search element must be positioned so that there are no metal objects within a radius of one and a half meters from it.
6. PROCEDURE FOR OPERATING THE MINE DETECTOR
Holding the search element by the bar and continuously moving it in front of you to the right and left, move forward in a given direction. In this case, it is necessary to ensure that the search element moves parallel to the ground surface at a distance of 5 to 7 cm from it. When moving along the reconnaissance strip, the sapper must move the search element forward no more than half its length, and it is necessary to carefully ensure that the entire area of the reconnaissance area is examined by the mine detector.
Having heard a signal in the phones (the appearance of the main tone), the sapper must stop and clarify the location of the mine.
Depending on the task at hand, he must either begin removing the mine or mark its location.
To determine the location of a mine, the search element must be carefully moved forward, where the appearance of the signal was recorded, until it is received in the phones
minimum sound. If, with further slight movement of the search element forward or backward, the signal in the phones increases, then the mine is located under the center of the search element. If, when moving the search element forward, the signal in the phones does not increase, then it is necessary, by moving the search element back, to determine the location of the mine using the same method.
The mine is located under the center of the search element only if, when moving it forward or backward, the signal in the phones increases.
As necessary, the mine detector should be adjusted, achieving the minimum volume of the main tone.
It should be remembered that the sensitivity of a mine detector is determined by the thoroughness of its settings.
In all other respects, strictly follow the requirements of the instructions on safety measures when clearing mines.
ATTENTION! Small metal masses (fuzes) can cause a weak signal to appear, so when searching, the sapper must pay special attention to recording these signals.
Features of operating a mine detector when searching
at the fords
When clearing fords, the mine detector is assembled to work in a “standing” position.
The length of the belt of the bag with the reinforcement unit must be adjusted so that the bag does not touch the water.
The assembled mine detector is adjusted in the usual manner on land, and then when the search element is lowered into the water to a depth of 1 m, the mine detector is adjusted.
When setting up a mine detector in water, the search element must be removed from the ground at a distance of 10 to 20 cm.
ATTENTION! Before lowering the search element into the water, it is necessary to tighten the union nut completely to prevent water from entering.
7. SPECIFIC FAULTS AND METHODS FOR THEIR ELIMINATION
Item no. | Typical fault | Probable Cause | Elimination methods |
1 | You can hear rustling and crackling noises on your phones. | Poor contacts at the junction of current sources. Poor contact in the plug connector. |
Check connections and clean contacts. Check or clean the contacts of the plug connector. |
2 | When the toggle switch is turned on, the mine detector does not work (no sound on phones). |
The current sources are not turned on correctly. The voltage of the current sources is less than 5.0 V. Break in the telephone circuit. |
Check that the current sources are turned on correctly. Change current sources. Change phones. Check the electrical circuit of the telephones with an ohmmeter, solder at the break point. |
3 | When you tap on the amplifier block, the sound in the phones disappears. | Poor contacts at solder joints. | Check the condition of the soldering and eliminate faults. |
4 | There are not enough compensation limits. | The axes of the coarse potentiometers rotated. A sharp change in climatic conditions. |
Set the axes of the fine-tuning potentiometers to the middle position and compensate using the coarse-tuning potentiometers. |
Paint unpainted areas, scratches and nicks or lubricate them with a thin layer of CIATIM-201 lubricant;
Place the mine detector in the storage case.
Reactivation of the mine detector must be carried out in the following order:
Remove the mine detector from the storage case; - remove old grease from the external lubricated surfaces of the mine detector;
Assemble a mine detector.
10. STORAGE RULES
Before storing mine detectors, power sources must be removed and stored separately.
Mine detectors in the field must be stored in storage cases, which must be covered or located indoors to prevent dust, dirt or water from entering the cases.
During long breaks in operation (up to 6 months), mine detectors must be stored in dry rooms
on shelves in storage cases.
The ambient temperature must be no lower than 283 K, relative humidity no more than 70%.
Storage of a mine detector for more than 6 months must be carried out in accordance with the 1963 edition of the “Guidelines for the storage of engineering weapons and equipment.”
11. TRANSPORTATION
Transportation of mine detectors during operation can be carried out manually or by any types of vehicles (on ships, airplanes, cars, by rail, etc.).
To transport a mine detector using a shoulder strap, you must:
Fasten the shoulder strap to the carabiners of the stowage case and place the straps on your shoulders.
Transportation of mine detectors by vehicles is carried out in packing cases.
ATTENTION! Transport mine detectors only with the power sources removed.
APPLICATION
Data table for winding products of the IMP device
Transformer number according to the drawing. Designation on the circuit diagram. |
Electrical circuit diagram | Core | Winding | Pin designation (start-end) |
Electrical parameters | Note | ||||
Iron type | Sectional area, mm 2 | Winding number | Wire grade and diameter, mm | Number of turns | Winding resistance at 293K, Ohm | Winding inductance, mH | ||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
Tr1 RB5.731.097 |
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Alloy 79NM W6.3x9 |
56,7 | I II |
PEV-1-0.06 PEV-1-0.06 |
3700 1400 |
2-3 5-4 |
980±15% 450±15% |
Not less than 2400 Not less than 320 |
|
Tr2, Tr3 RB5.731.098 |
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Alloy 79NM W6.3x9 |
56,7 | I II |
PEV-1-0.06 PEV-1-0.06 |
1000 3000 500 |
2-6 6-3 4-5 |
1100±15% 155±15% |
1900-2500 At least 50 |
|
Generator coil L2 RB5.689.013 |
Steel E-330 | PEV-2-0.33 PEV-2-0.33 PEV-2-0.33 PEV-2-0.33 PEV-2-0.33 PEV-2-0.33 |
238 237 237 218 20 20 |
1-2 2-3 3-4 4-5 5-6 6-7 |
13±10 | 45±10 | Resistance and inductance values are measured between pins 1-6 | |||
Receiving coils L1, L3 RB5.764.014 |
PEV-2-0.1 | 3500 | N-K | 1400±10 | 400±10 |
Note. Inductance measured at 1000 Hz at 0.5 V.
Schematic diagram of the IMP mine detector
Rice. 8.
DEVICE IMP. PRINCIPAL ELECTRICAL DIAGRAM RB2.471.003 SkhE
1. The gains of transistors T1 and T2 should not differ by more than 10%.
2. Capacitors C7* and C10*, cores E1 and E2 are installed if necessary.
3. In positions C5 and C14, it is allowed to use capacitors K53-1-6-22±30% and K53-1-15-15±30%, respectively. OJO. 464.023TU
4. OMLT resistors according to OZHO.467.107TU.
* Selected during regulation.
Rice. 9.
Search element without casing
Rice. 10.
Amplifier unit with casing removed.
Rice. eleven.
Rear view of the amplifier unit.
Pos. designation |
Name | Col. | Note |
R1* | Resistor OMLT-0.25-82 Ohm±10% | 1 | 39; 56 Ohm |
R2 | 1 | ||
R3 | Resistor OMLT-0.25-1kOhm ±10% | 1 | |
R4* | Resistor OMLT-0.25-39 Ohm±10% | 1 | 56;82 Ohm |
R5 | Resistor OMLT-0.25-4.7 kOhm ± 10% | 1 | |
R6 | Resistor OMLT-0.25-1kOhm±10% | 1 | |
R7* | Resistor OMLT-0.25-82 Ohm±10% | 1 | 39; 56 Ohm |
R8 | Resistor OMLT-0.25-39kOhm ± 10% | 1 | |
R9 | Resistor 11SP-1-1-A-22kOhm±20% OS-5-32 OZh0.468.084 TU | 1 | |
R10 | Resistor OMLT-0.25-39kOhm±10% | 1 | |
R11 | Resistor OMLT-0.5-4.7 MOhm±10% | 1 | |
R12 | Resistor 11SP-1-1-A-100kOhm±20% OS-3-60 OZHO.468.084. THAT | 1 | |
R13* | Resistor OMLT-0.5-4.7 MOhm ± 10% | 1 | 1.5 MOhm |
R14 | Resistor 11SP-1-1-A-47kOhm±20% OS-5-32 OZHO.463.084 TU | 1 | |
R15 | Resistor PSP-1-1-A-47kOhm±20% OS-3-60 OZHO.463.084 TU | 1 | |
R16 | Resistor OMLT-0.25-3kOhm±5% | 1 | |
R17 | Resistor OMLT-0.25-6.2 kOhm±5% | 1 | |
R18 | Resistor OMLT-0.25-240 Ohm±5% | 1 | |
R19 | Resistor OMLT-0.25-5.6 kOhm ±10% | 1 | |
R20 | Resistor OMLT-0.25-2.2 kOhm± 10% | 1 | |
R21 | Resistor OMLT-0.25-4.3 kOhm±5% | 1 | |
R22 | Resistor OMLT-0.25-10kOhm ± 10% | 1 | |
R23* | Resistor OMLT-0.25-120 Ohm±10% | 1 | 270; 390 Ohm |
R24; R25 | Resistor OMLT-0.25-8.2 kOhm ±10% | 2 | |
R26 | Resistor OMLT-0.25-4.3 kOhm±5% | 1 | |
R27* | Resistor OMLT-0.25-270 Ohm ± 10% | 1 | 100; 150; 390; 470 Ohm |
R28 | Resistor OMLT-0.25-2.7 kOhm ± 10% | 1 | |
R29 | Resistor OMLT-0.25-120 Ohm ± 10% | 1 | |
C1* | 1 | Select 0.25 µF | |
C2 | Capacitor KD-1-M75-5.1pF ±10%-3 OZhO.460.154 TU | 1 | |
C3 | Capacitor KD-1-M700-27pF ± 10%-3 OZhO.460.154 TU | 1 | |
C4 | Capacitor BM-2-200V-0.01 uF ± 10% OZhO.460.154 TU | 1 | |
C5 | Capacitor K-53-4-6-22±30% OZHO.464.037 TU | 1 | |
C6* | Capacitor BM-2-200V-4700pF ± 10% OZhO.462.047 TU | 1 | 3300;5100pF |
C7* | 1 | 1000pF | |
C8 | Capacitor MBM-160-0.25-11 OZHO.462.032 TU | 1 | |
C9* | Capacitor BM-2-200V 4700pF±10% OZHO.462.047 TU | 1 | 3300; 5100pF |
C10* | Capacitor BM-2-300V-680pF ± 10% OZhO.462.047 TU | 1 | 1000pF |
C11 | Capacitor MBM-160-0.25-11 OZHO.462.032 TU | 1 | |
C12 | Capacitor BM-2-200V-3300pF ± 10% OZhO.462.047 TU | 1 | |
C13 | Capacitor MB M-160-0.25-11 OZHO.462.032 TU | 1 | |
C14 | Capacitor K53-4-15-15±30% O Zh0.464.037 TU | 1 | |
L1 | RB5.764.014 Receiving coil | 1 | |
L2 | RB5.689.013Sp Generator coil | 1 | |
L3 | RB5.764.014 Receiving coil | 1 | |
B | Element 373 GOST 12333-74 | 4 | |
IN | Toggle switch TV2-1 USO.360.049 TU | 1 | |
Gn1; Gn2 | RB7.746.005 Telephone socket | 2 | |
T1; T2 | Transistor MP15 SBO.336.007TU1 | 2 | |
T3...T5 | Transistor MP13B SBO.336.007TU1 | 3 | |
Tp1 | RB5.731.097Sp Input transformer | 1 | |
Tr2; Tr3 | RB5.731.098SP Matching transformer | 2 | |
Tf | Headphones TA-56M RL3.844.020Sp RLO.384.004 TU | 1 | |
Ш1 | Insert ШР 20У5НШ 10 GEO.364.107 TU | 1 | |
Ш2 | Block ShR 20 P5 ESh 10 GEO.364.107 TU | 1 | |
E1 | RB7.773.001 Core | 1 | |
E2 | Core MR-20-2 RM9x1.0x19 OZHO.707.115 TU | 1 |
Table with ratings of electronic components used in the IMP mine detector circuit