CN210268371U - Device for simultaneously measuring speed, position and number of fragments - Google Patents

Abstract

The utility model belongs to speed and position test field specifically are a device of simultaneous measurement fragment speed, position and quantity. The utility model discloses constitute by fixed two copper-clad plates, collection processing circuit, the frame at centimeter level distance apart. Each copper-clad plate comprises a top layer, an intermediate layer and a bottom layer, the top layer comprises a plurality of broken line detection small blocks, the intermediate layer and the bottom layer comprise a plurality of parallel alternate comb-shaped copper film lines to form mutually perpendicular longitude and latitude detection lines, the detection lines in the length and width directions of each detection small block are not repeated, and when a certain block is punctured by the elastic sheet, the specific position of the small block can be known by detecting the on-off of the longitude and latitude lines. And calculating the vector speed and the number of the shrapnels by the shrapnels through 2 target surface positions and time. Compared with the traditional longitude and latitude target, the device saves the number of detection lines, and can be arranged to a narrow space to measure the striking position, speed and direction of the elastic sheet and the minimum number of the elastic sheets in the target surface area.

Description

Device for simultaneously measuring speed, position and number of fragments

Technical Field

The utility model belongs to speed and position test field specifically are a device of simultaneous measurement fragment speed, position and quantity, and the device can more accurately measure explosion fragment position and speed.

Background

When ammunition explosion or ammunition strikes an armor, a ship and a building target, fragment speed and position are one of main damage effectors, and are key parameters for testing. A series of test instruments and devices are already provided in the field of fragment speed measurement, a common speed measurement system is formed by a section device and the test instruments, and the section devices commonly used in domestic target ranges at present are coil targets, sky screen targets, light screen targets, ultrasonic shock wave method targets, double-layer motor short-circuit targets, image processing methods and the like. The shock wave target-scoring system with the patent number of CN200610102134.X utilizes the shock wave generated when the projectile flies at supersonic speed to detect; the patent number is CN201010231582.6 system of reporting a target utilizes the shot to puncture the ultrasonic wave that the target produced and detects, but it has certain requirement to the target, and corresponding signal processing algorithm is more complicated, is difficult for realizing with embedded hardware, but naval vessel cabin, tank armor, the inside ultrasonic wave in room because irregular plane of reflection and space are narrow and small, the complicated reflection stack of ultrasonic wave is propagated for this method can't discern the ultrasonic wave, leads to the test failure. Patent CN201310077701.0 presss from both sides a layer insulating layer between 2 layers of conducting layers, utilizes the pellet to pass through double-deck electrode conduction and detects, can't confirm the position of fragment at the target surface, and is great to the fragment speed measuring error that the non-perpendicular passed through the target surface. The light curtain array target of patent CN200710019000.6 has high requirement on light curtain precision, and the detection performance of the shot by using the light curtain target of a camera or linear array CDD is not good; the automatic target-reporting and speed-measuring device and the positioning and speed-measuring method thereof disclosed in patent 201510487949.3 adopt a linear continuous infrared light source, a linear CCD (charge coupled device) for measuring positions and two target surfaces for measuring speed, but a CCD detector is easily influenced by dust and smoke and cannot be used in a strong light environment. The patent CN201310249220.3 adopts an image recognition method to measure speed and target position, but has requirements on the finish of a target surface, and the image is influenced by explosion smoke, dust and strong light and cannot be accurately measured or even work at all. When live ammunition strikes tanks, ship cabins and building rooms, the installation space of the measuring target is limited, meanwhile, the arrival direction, speed and size of the elastic sheet at the internal measuring point are unknown, and the devices and the methods cannot be installed.

Disclosure of Invention

In order to solve the problem that exists when having narrow spaces such as tank armour, naval vessel cabin, building room of shell fragment target measurement now, the utility model provides a device of simultaneous measurement fragment speed, position and quantity.

The utility model discloses an adopt following technical scheme to realize: a device for simultaneously measuring the speed, the position and the number of fragments comprises two copper-clad plates with three layers, an acquisition processing circuit and a fixed frame, wherein each copper-clad plate comprises a top layer, a middle layer and a bottom layer, the top layer of the copper-clad plate is divided into a plurality of small detection areas for detecting the approximate position hit by the fragments, a continuously bent copper film with equal intervals is arranged in each small detection area, one end of the copper film is connected with a pull-up resistor at the end of the acquisition processing circuit through a signal detection line, and the other end of the copper film is grounded; the middle layer forms copper film wefts in the length direction of the copper-clad plate, each weft crosses the top layer detection small block areas in the same row, each detection small block area covers a plurality of weft segments, the number of the wefts in the width of each detection small block area is the same, one end of each weft is connected with a pull-up resistor at the end of the acquisition processing circuit through a signal detection line, and the other end of each weft is grounded; the bottom layer forms copper film warps in the width direction of the copper-clad plate, each warp vertically spans a top layer detection small block area in the same row, each detection small block area covers a plurality of warp segments, the number of warps in the length of each detection small block area is the same, one end of each warp is connected with a pull-up resistor at the end of the acquisition and processing circuit through a signal detection line, and the other end of each warp is grounded; the fixed frame comprises an upper frame, a lower frame, a left frame, a right frame and a middle cushion frame, wherein the frames are provided with grooves, the upper frame, the lower frame, the left frame, the right frame and the middle cushion frame are connected end to form a frame type fixed frame, the frame type fixed frame is provided with a frame type groove, the thickness of the middle cushion frame is centimeter level, the upper groove edge and the lower groove edge of the notch of the frame type fixed frame are arranged, the middle cushion frame and the copper-clad plate are provided with vertical compression screw holes corresponding in position, the frame type fixed frame and the middle cushion frame are provided with horizontal tension screw holes and tension blind holes corresponding in position, the two copper-clad plates are attached to the middle cushion frame respectively in front.

When the copper-clad plate is fixed, the tensioning adjusting screw is rotated, the end part of the tensioning adjusting screw abuts against the middle cushion frame and then pulls the frame outwards, tensioning adjustment of the copper-clad plate can be achieved, and when the copper-clad plate is adjusted to a proper tensioning degree, the compression screw is screwed down, so that the copper-clad plate is guaranteed to have enough pressure and friction in the frame-shaped groove. The signal detection line is provided with detection points, the copper film is disconnected after the fragment hits, the acquisition processing circuit detects a level signal which is generated after the copper film is disconnected and is changed from low to high, the top detection small block area is used for detecting the approximate position of the hit of the fragment, and the middle layer and the bottom layer form a longitude and latitude line in each block position of the top layer for detecting the accurate position. And detecting the time of the fragments passing through the two target surfaces and the fragment flying distance by adopting an acquisition processing circuit to obtain the fragment vector speed.

The copper-clad plate comprises a first layer of base material and a second layer of base material, wherein the front surface of the first layer of base material is provided with a copper film which is continuously bent at equal intervals, a copper film weft is arranged between the first layer of base material and the second layer of base material, and a copper film warp is arranged on the back surface of the second layer of base material.

The device for simultaneously measuring the speed, the position and the number of the fragments comprises a first layer of base material and a second layer of base material, wherein the first layer of base material and the second layer of base material are made of polytetrafluoroethylene, the copper-clad plates are flexible copper-clad plates, the two copper-clad plates share the first layer of base material and the second layer of base material, the two flexible copper-clad plates are formed after being bent between the first layer of base material and the second layer of base material, and the two flexible copper-clad plates formed after being bent during fixing clamp a middle cushion frame in the middle and then are fixed.

The device for simultaneously measuring the speed, the position and the number of the fragments has the bending angle of 90 degrees for continuously bending the copper films at equal intervals.

According to the device for simultaneously measuring the speed, the position and the number of the fragments, two ends of the weft threads corresponding to the same position in different detection small blocks in the width direction of the copper-clad plate are respectively connected, two ends of the warp threads corresponding to the same position in different detection small blocks in the length direction of the copper-clad plate are respectively connected, and then the pull-up resistors are connected after the connection, so that the number of signal detection lines is effectively reduced.

The utility model provides a foretell simultaneous measurement fragmentation speed, device of position and quantity, bend the equidistant copper film in succession and still connect the pull-up resistance through another signal detection line in collection processing circuit termination, bend in succession and connect two tip that connect two signal detection lines on the equidistant copper film and be located diagonal position, bend in succession and connect behind two signal detection lines the equidistant copper film, only two signal detection lines are broken simultaneously and just can be detected the high level by collection processing circuit, if only one of them is broken and can not detect the high level, it is the probability that detects the regional copper film of fritter and is broken to reduce shell fragment breakage signal detection line misjudgement, the tip of connecting signal detection line simultaneously is in diagonal position, two signal detection line distances are far away, two signal detection lines are difficult to be broken simultaneously.

The utility model discloses in aiming at solving such as tank armoured vehicle, naval vessel cabin, building room etc. narrow space, the speed, position, the quantity measurement difficult problem of target object are used to the fragment of ammunition. The utility model discloses can arrange and measure shell fragment striking direction, speed and position in narrow and small space, the shell fragment is in the regional minimum shell fragment quantity of target surface.

Drawings

Fig. 1 is a schematic diagram of the present invention for measuring the speed, position and quantity of the fragments.

Fig. 2 is a block position schematic diagram of the present invention.

Fig. 3 is a schematic diagram of a detection patch of fig. 2 according to the present invention.

Fig. 4 is the utility model discloses measure the weft position of fragment and lay the schematic diagram.

Fig. 5 is the superposition principle diagram of the block position and the weft position of the measuring fragment of the utility model.

FIG. 6 is the copper-clad plate section view of the utility model discloses detect rupture of plates.

Fig. 7 is a schematic diagram of the present invention for measuring the fragment speed.

Fig. 8 is an exploded view of the fixed frame.

Fig. 9 is a front view of the fixing frame.

Fig. 10 is a sectional view of the fixing frame.

In the figure: 1-copper clad plate 1, 2-fixed frame, 3-copper clad plate 2, 4-signal bus, 5-acquisition processing circuit and 6-detection small block B₁₁7-detection of Small Block B₁₂8-detection of Small Block B_1a9-detection of Small Block B_ba10-detection of Small Block B_b211-detection of Small Block B_b112-signal detection line, 13-signal ground, 14-continuous bending of copper film with equal spacing, 15-detection points B1c, 16-pull-up resistor R, 17-power VCC, 18-weft detection point L1c, 19-weft detection point L2c, 20-weft detection point L3c, 21-weft detection point L4c, 22-weft detection point L5c, 23-weft detection point L6c, 24-first layer base material, 25-weft, 26-second layer base material, 27-warp, 28-shrapnel, 29-shrapnel flight track, vertical line of copper-clad plate 1 and target plate crossed by 30-shrapnel, and flight distance L of 31-shrapnel₀32-the straight line distance d1 between the vertical line of the copper-clad plate 2 and the intersection point of the broken piece and the copper-clad plate 2, 33-the frame, 34-the middle cushion frame, 35-the tensioning adjusting screw, 36-the compression screw and 37-the flexible copper-clad plate.

Detailed Description

A method for simultaneously measuring the speed and the position of a spring plate adopts two copper-clad plates which are fixed together at a centimeter level distance, an acquisition processing circuit and a fixed frame.

Each copper-clad plate consists of a top layer, a middle layer and a bottom layer. The top layer of the copper-clad plate is divided into a plurality of detection small block areas for detecting the approximate position of the broken piece hitting, as shown in fig. 2, each detection small block area is formed by a copper film which is continuously bent and equidistantly, as shown in fig. 3, signal detection lines are respectively led out at opposite corners to reduce the probability that the copper film in the detection small block area is broken by misjudgment of the broken piece hitting signal detection lines, the copper film is connected with a pull-up resistor at the end of an acquisition processing circuit through the signal detection lines, the other tap is grounded, the copper film is broken after the detection small block area is hit by the broken piece, the acquisition processing circuit detects level signals which are generated by low and high after the copper film is broken, and as each detection small block area is independent, the number of the detection small block areas which are detected by the acquisition processing circuit to be low and high is the.

The middle layer forms wefts in the length direction of the copper-clad plate, each weft is parallel and independent, each weft crosses over the top layer detection small block areas in the same row, each detection small block area covers 6 weft sections, the number of the wefts in the width of each detection small block area is the same, two ends of the wefts in the same position corresponding to the different detection small block areas in the width direction of the copper-clad plate are respectively connected (as shown in figure 4, two ends of the wefts from the top to the bottom in the different detection small block areas are respectively connected, two ends of the wefts in the second position are respectively connected, and two ends of the wefts in other positions are respectively connected), one end of the weft is connected with a pull-up resistor after being connected with a signal detection line, the other end of the weft is grounded, the copper film is disconnected after the wefts are hit by a fragment, and the acquisition processing circuit detects a low-high level signal generated after the copper.

The bottom constitutes the warp at copper-clad plate width direction, the weft and the bottom warp mutually perpendicular in the intermediate level, every warp is parallel independent, every warp erects to stride the top layer that is located same row and detects the fritter region, every detects the fritter region and covers 6 warp sections, every warp in detecting the fritter region length is the same in number, warp both ends that same position corresponds in different detection fritter regions in copper-clad plate length direction are connected respectively, connect pull-up resistance in the collection processing circuit termination behind one of them termination signal detection line, other end ground connection, the warp is hit the back copper film disconnection by the rupture disc, the collection processing circuit detects the level signal that produces by the low height after the copper film disconnection.

The middle layer and the bottom layer form warps and wefts in each detection small block area of the top layer for detecting accurate positions, the elastic pieces puncture the positions of certain detection small blocks to determine the area positions of the elastic pieces in the whole copper-clad plate, the wefts puncture the positions to determine the width positions of the detection small blocks, the warps puncture the positions to determine the length positions of the detection small blocks, the specific positions of the fragments in the detection small blocks are determined by the positions of the warps and the wefts, and the positions of the elastic pieces hitting the whole copper-clad plate are determined by combining the position information of the detection small blocks on the whole copper-clad plate.

As shown in FIG. 6, the copper-clad plate comprises a first layer of base material 24 and a second layer of base material 26, wherein the front surface of the first layer of base material 24 is provided with a continuous bending copper film with equal intervals, copper film weft yarns 25 are arranged between the first layer of base material 24 and the second layer of base material 26, and the back surface of the second layer of base material 26 is provided with copper film warp yarns 27.

The first layer of base material 24 and the second layer of base material 26 are made of polytetrafluoroethylene, the copper-clad plate is a flexible copper-clad plate, the two copper-clad plates share one first layer of base material 24 and one second layer of base material 26, and the two flexible copper-clad plates are formed after the middle of the first layer of base material 24 and the second layer of base material 26 are bent.

The principle of measuring the speed of the broken piece is shown in figure 7, the distance d between two copper-clad plates₀Fixing, wherein the position of the elastic sheet penetrating through each copper-clad plate is known, and the position of the elastic sheet penetrating through the first copper-clad plate is vertically projected onto the second copper-clad plate to obtain the distance d between the projection point and the position of the elastic sheet on the second copper-clad plate₁Obtaining the flying distance L of the elastic sheet between two copper clad plates by the Pythagorean theorem₀And then, the triangular formula is used for obtaining the incident angle of the elastic sheet. The acquisition processing circuit detects that a rising edge signal of a first copper-clad plate detection small block area starts to start the counter to count, the clock period of the counter is fixed, and when the acquisition processing circuit detects that a rising edge signal of a second copper-clad plate detection small block area starts to countAnd (3) finishing the counting of the counter along the signal, multiplying the counting value by the period of the counting clock to obtain the time of the elastic sheet flying over the two copper-clad plates, and obtaining the fragment scalar speed through the time of the two target surfaces and the fragment flying distance. The vector velocity is obtained from the fragment incidence angle and the scalar velocity. This target tests speed can arrange and measure shell fragment direction of attack, speed and position in narrow and small space, the shell fragment is at the regional minimum shell fragment quantity of target surface. Because the interval of two copper-clad plates is centimeter level, so the position that same shell fragment passes two copper-clad plates belongs to same detection fritter region, and the device just can detect the speed of different shell fragments, also does not possess by current device.

As shown in fig. 8-10, the fixing frame includes four upper, lower, left, right frames 33 and a middle cushion frame 34, the frames 33 are frames with grooves, the four upper, lower, left, right frames 33 are connected end to form a frame-shaped fixing frame, the frame-shaped fixing frame is provided with frame-shaped grooves, the thickness of the middle cushion frame 34 is centimeter-sized (10 mm), the vertical compression screw holes corresponding to the positions are arranged on the upper and lower groove edges of the notch of the frame-shaped fixing frame, the middle cushion frame and the copper-clad plate, the horizontal tension screw holes are respectively arranged on the periphery of the frame-shaped fixing frame, the horizontal tension blind holes corresponding to the positions of the tension screw holes are arranged on the periphery of the middle cushion frame, the middle cushion frame is clamped by the flexible copper-clad plate 37 and is placed in the frame-shaped groove of the frame-shaped fixing.

Claims (6)

1. An apparatus for simultaneously measuring speed, position and quantity of fragments, characterized in that: the detection device comprises two copper-clad plates with three layers, an acquisition processing circuit and a fixed frame, wherein each copper-clad plate comprises a top layer, a middle layer and a bottom layer, the top layer of the copper-clad plate is divided into a plurality of small detection areas for detecting the approximate position of the hit of the broken piece, a continuously bent copper film with equal intervals is arranged in each small detection area, one end of the copper film is connected with a pull-up resistor through a signal detection line in the acquisition processing circuit (5), and the other end of the copper film is grounded; the middle layer forms copper film wefts (25) in the length direction of the copper-clad plate, each weft (25) crosses over the top layer detection small block areas in the same row, each detection small block area covers a plurality of weft segments, the number of the wefts in the width of each detection small block area is the same, one end of each weft is connected with a pull-up resistor at the end of the acquisition processing circuit through a signal detection line, and the other end of each weft is grounded; the bottom layer forms copper film warps (27) in the width direction of the copper-clad plate, each warp (27) vertically spans a top layer detection small block area in the same column, each detection small block area covers a plurality of warp segments, the number of warps in the length of each detection small block area is the same, one end of each warp is connected with a pull-up resistor at the end of the acquisition and processing circuit through a signal detection line, and the other end of each warp is grounded; fixed frame is including four frames (33) and middle pad frame (34) about from top to bottom, frame (33) are the frame of taking the recess, enclose into a frame type fixed frame after four frames (33) end to end about from top to bottom, frame type fixed frame has frame type recess, the thickness of middle pad frame (34) is centimetre level, slot edge about the notch of frame type fixed frame, middle pad frame and copper-clad plate set up the vertical screw hole that compresses tightly that the position corresponds all around, frame type fixed frame and middle pad frame set up the horizontally tensioning screw hole and the tensioning blind hole that the position corresponds respectively all around, two copper-clad plates are pasted respectively around in the middle pad frame after-poppet place in frame type fixed frame's frame type recess, through tensioning adjusting screw (35), it is fixed to compress tightly screw (36).

2. The device for simultaneously measuring the speed, the position and the number of the fragments according to claim 1, wherein the copper-clad plate comprises a first layer of base material (24) and a second layer of base material (26), wherein a continuously bent copper film with equal spacing is arranged on the front surface of the first layer of base material (24), copper film weft threads (25) are arranged between the first layer of base material (24) and the second layer of base material (26), and copper film warp threads (27) are arranged on the back surface of the second layer of base material (26).

3. The device for simultaneously measuring the speed, the position and the number of the fragments according to claim 2, wherein the first layer of base material (24) and the second layer of base material (26) are made of polytetrafluoroethylene, the copper clad laminate is a flexible copper clad laminate, the two copper clad laminates share one first layer of base material (24) and one second layer of base material (26), and the two flexible copper clad laminates are formed after the middle of the first layer of base material (24) and the second layer of base material (26) are bent.

4. The apparatus for simultaneously measuring the speed, position and quantity of the fragments as claimed in claim 1, 2 or 3, wherein the bending angle of continuously bending the copper film with equal intervals is 90 degrees.

5. A device for simultaneously measuring the speed, position and quantity of fragments according to claim 1, 2 or 3, characterized in that: two ends of the weft threads corresponding to the same positions in different detection small areas in the width direction of the copper-clad plate are respectively connected, and two ends of the warp threads corresponding to the same positions in different detection small areas in the length direction of the copper-clad plate are respectively connected.

6. A device for simultaneously measuring the speed, position and quantity of fragments according to claim 1, 2 or 3, characterized in that: the continuously bent equidistant copper film is also connected with a pull-up resistor at the acquisition processing circuit (5) through another signal detection line, and two ends of the continuously bent equidistant copper film connected with the two signal detection lines are positioned at diagonal positions.

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