CN113008137B - Device and method for testing broken slice group by combining area array CCD imaging and photoelectric coding - Google Patents
Device and method for testing broken slice group by combining area array CCD imaging and photoelectric coding Download PDFInfo
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- CN113008137B CN113008137B CN202110189247.2A CN202110189247A CN113008137B CN 113008137 B CN113008137 B CN 113008137B CN 202110189247 A CN202110189247 A CN 202110189247A CN 113008137 B CN113008137 B CN 113008137B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B35/00—Testing or checking of ammunition
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Abstract
The invention provides a fragment group testing device and method combining area array CCD imaging and photoelectric coding, belonging to the technical field of photoelectric testing and weapon range testing. The laser light source and the photosensitive diode coding array at the right upper end of the main body frame form a detection light curtain, the area array CCD target is arranged at the bottom center of the main body frame, the view field of the area array CCD target and the laser detection light curtain are mutually intersected, and the main body of the testing device is arranged in the ballistic direction and is a certain distance away from the explosion position of the warhead. The invention can accurately match and identify the fragment group generated by the explosion of the projectile, can measure the fragment space scattering parameter with high precision, and provides effective data support for the target damage efficiency evaluation.
Description
Technical Field
The invention belongs to the technical field of photoelectric testing and weapon range testing, and particularly relates to a fragment group testing device and method combining area array CCD imaging and photoelectric coding.
Background
The space scattering position of the broken piece is one of important parameters for evaluating the damage effect of the warhead, particularly the damage efficiency evaluation of the space target by the near-explosion broken piece of the space projectile, and the random and uncertainty of the broken piece group is generated at the moment of explosion, so that the measurement of the space scattering position of the broken piece is very difficult, the efficiency of the broken piece damage target can not be measured, and the high-precision measurement of the space scattering parameter of the broken piece has extremely high research significance and provides an effective theoretical basis for the target damage evaluation system.
At present, the testing device for the fragment spreading parameters mainly comprises a wood target plate, a multi-light curtain intersection testing system, a multi-CCD intersection testing system and the like, and the devices have certain defects when testing the fragment space spreading positions; the wood target plate method is to erect wood targets at the positions specified by the trajectory according to the test rules, and after a group of design is completed, the positions of the spring holes on the target plate are measured manually. The wood target plate method has high reliability, but has the advantages of large material consumption, inconvenient installation, incapability of identifying heavy holes, time and labor waste, incapability of processing real-time data, and incapability of eliminating human errors due to manual measurement; the multi-light curtain intersection test system adopts array detection light curtain intersection arrangement to measure the target position, and if the broken group is tested, at least seven detection light curtains are needed to be identified and matched with a plurality of broken pieces through the space geometrical relationship of the detection light curtains; the multi-CCD intersection test system utilizes a plurality of CCDs to form a detection target surface, utilizes a space-time matching method to test fragment scattering parameters, is complex in field arrangement, cannot accurately control the overlap ratio of the plurality of surfaces, cannot accurately obtain intersection angles, causes low precision of measured target parameters, has a missing test phenomenon, and cannot meet the requirements of fragment group scattering parameter test.
In view of the foregoing, the prior art cannot meet the requirements of fragment parameter testing, and there is a strong need for a new device and method that can meet the requirements of fragment group distribution parameter testing.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a fragment group testing device and method combining area array CCD imaging and photoelectric coding.
In order to achieve the above object, the present invention provides the following technical solutions:
the patch group testing device combining the planar array CCD imaging and the photoelectric coding comprises an L-shaped main body frame, an planar array CCD target and an upper computer; a photosensitive diode coding array is arranged in the middle of the top of one side of the main body frame, a line laser is arranged in the middle of the bottom of the other side far away from the photosensitive diode coding array, a laser beam in a straight line shape is emitted to the upper side by the line laser to form a laser detection light curtain, and the photosensitive diode coding array is used as a photoelectric detection unit to receive the laser beam so as to form the laser detection light curtain; the area array CCD target is arranged at the center of the bottom of the main body frame and is electrically connected with the upper computer through a data interface, and an outer cover of a metal shell is arranged outside the area array CCD target.
Preferably, the main body frame comprises a first frame arranged on a horizontal plane and a second frame arranged on a vertical plane, the second frame is arranged at the top of one side of the first frame, two sides of the second frame are connected with two side walls of the first frame through connecting rods arranged obliquely, the first frame and the connecting rods form a right-angle triangle shape, and a fixed cross rod is arranged in the middle of the first frame; the photosensitive diode coding array is arranged in the middle of the top of the second frame, the line laser is arranged in the middle of one side of the first frame far away from the second frame, and the area array CCD target is arranged in the center of the top of the fixed cross rod.
Preferably, the second frame comprises a first column body, a third column body and a second column body, wherein the first column body and the third column body are vertically arranged, the second column body is connected with the top ends of the first column body and the third column body, a photoelectric detection unit is arranged in the second column body, and the photoelectric detection unit comprises an adaptive circuit board, a slit and an optical lens which are sequentially arranged from inside to outside; the optical lens is configured to absorb laser energy and collect the laser energy onto the photodiode coding array, and the whole process is controlled by the adaptive circuit board.
Preferably, the wavelength of the laser emitted by the line laser is 650nm, the emission angle of the fan-shaped laser beam emitted by the line laser is 90 degrees, and the fan-shaped laser beam intersects with the detection view field of the area array CCD target to form a detection area.
Preferably, the area array CCD target comprises a shell and an optical lens arranged on the upper surface of the shell, an electric box is arranged in the shell, and an area array CCD camera, a power supply, a signal acquisition unit and an image processing unit are arranged in the electric box; the plane array CCD camera is positioned vertically below the optical lens and is configured to acquire an image sequence of a flying target, and one side of the plane array CCD camera, which faces the optical lens, is provided with a light sensing surface and a focusing plane which are sequentially arranged; the power supply is configured to supply power to the line laser, the signal acquisition unit and the image processing unit; the signal acquisition unit is connected with the photodiode coding array, is configured to acquire signal waveforms of the fragment targets passing through the laser detection light curtain, and transmits the signal waveforms to the upper computer, and the image processing unit is configured to preprocess image sequence information acquired by the optical lens and acquired by the area array CCD camera; the shell is characterized in that first fixing blocks are arranged on two sides of the shell, the first fixing blocks are fixed in the middle of the fixing cross rod through first screws, and leveling blisters are arranged at the top of the shell.
Preferably, a motor is further arranged in the electric box, and an output shaft of the motor is connected with the focusing plane.
Preferably, four corners of the main body frame are provided with four bottom corners, the bottom corners are connected with the four corners of the first frame through studs, the studs are provided with knobs, and the knobs are configured to adjust the height of the main body frame by adjusting the positions between the studs and the bottom corners.
The invention also provides a fragment group testing method combining area array CCD imaging and photoelectric encoding, which comprises the following steps:
step 1, when a fragment group enters a detection area and reaches a laser detection light curtain, triggering an area array CCD target to start working, and collecting a fragment image sequence; when the broken sheet passes through the laser detection light curtain, a signal acquisition unit connected with the photodiode coding array acquires signals and determines the position of a coding point for receiving detection signals;
step 3, determining that the included angle between the ith target fragment passing through the laser detection light curtain and the field center of the area array CCD target optical system is alpha i An expression;
Step 5, determining the vertical distance s between the ith target fragment and the photodiode array when the ith target fragment passes through the laser detection light curtain i ；
Step 6, determining the angle delta between the ith photodiode and the central line of the laser detection target surface according to the photodiode code number of the target-passing signal received by the photodiode code array i ；
x i ＝3(i-1/2)+s i tanδ i -L/2
y i ＝h i -2d tanθ
z i ＝-s i 。
the fragment group testing device and method for combining area array CCD imaging and photoelectric encoding provided by the invention have the following beneficial effects:
the invention is based on the existing test technical means, a laser detection light curtain is formed by using line laser and a photodiode coding array, a detection area is formed by intersecting the line laser and a field of view of an area array CCD (charge coupled device) at a certain angle, when a broken piece passes through the detection area, the luminous flux at a certain position of the photodiode coding array is changed, the coordinate information of a coding point sending a signal at the moment is recorded, and the spatial position of the broken piece is calculated by combining the pixel coordinate information of the broken piece on the area array CCD. The invention utilizes the combination detection of the linear laser and the area array CCD, has simple structure, can measure the space dispersion parameters of the fragment groups with high precision, can accurately match and identify the fragment groups generated by the explosion of the projectile, and provides effective data support for the evaluation of the target damage efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention and the design thereof, the drawings required for the embodiments will be briefly described below. The drawings in the following description are only some of the embodiments of the present invention and other drawings may be made by those skilled in the art without the exercise of inventive faculty.
FIG. 1 is a schematic layout diagram of a patch group testing device combining area array CCD imaging and photoelectric encoding according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a patch group testing device combining area array CCD imaging and photoelectric encoding according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a combined area CCD imaging and photoelectric encoding fragment group testing apparatus according to an embodiment of the present invention;
FIG. 4 is a top view of a combined area CCD imaging and photoelectric encoding fragment group testing apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an area array CCD target according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an image coordinate system uov of an image collected by an area array CCD of an area array CCD imaging and photoelectric encoding combined fragment group testing device according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of yoz planar coordinate resolution of a patch group testing method combining area array CCD imaging and photoelectric encoding according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of xoz planar coordinate resolution of a patch group testing method combining area array CCD imaging and photoelectric encoding according to an embodiment of the present invention;
fig. 9 is a schematic diagram of coordinate resolution of a patch group testing method combining planar array CCD imaging and photoelectric encoding according to the present invention.
Reference numerals illustrate:
1-a main body frame; 2-area array CCD target; 3-an upper computer; a 4-line laser; 5-photodiode coding array; 6-laser detection light curtain; 7-a data interface; 8-fixing the cross bar; 9-a metal shell; 10-a first frame; 11-a second frame; 12-connecting rods; 13-a first screw; 14-a first fixed block; 15-base angle; 16-studs; 17-a knob; 18-fixing plates; 19-a second screw; 20-mounting seats; 22-a first column; 23-a second column; 24-a third column; 25-an adaptive circuit board; 26-slit; 27-an optical lens; 28-an optical lens; 29-leveling the blister; 30-area array CCD camera; 31-a power supply; 32-a signal acquisition unit; 33-an image processing unit; 34-a housing; 35-focusing plane; 36-an electric motor; 37-photosurface.
Detailed Description
The present invention will be described in detail below with reference to the drawings and the embodiments, so that those skilled in the art can better understand the technical scheme of the present invention and can implement the same. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the technical solutions of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly specified or limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more, and will not be described in detail herein.
Example 1
The invention provides a broken group testing device combining area array CCD imaging and photoelectric encoding, which adopts a mode of combining a line laser 4, a photodiode coding array 5 and an area array CCD target 2 to test the space dispersion parameters of the broken group. As shown in fig. 1, the device comprises an L-shaped main body frame 1, an area array CCD target 2 and an upper computer 3; a photodiode coding array 5 is arranged in the middle of the top of one side of the main body frame 1, a line laser 4 is arranged in the middle of the bottom of the other side far away from the photodiode coding array 5, a laser detection light curtain 6 is formed by emitting a linear laser beam obliquely upwards through the line laser 4, and the photodiode coding array 5 is used as a photoelectric detection unit to receive the laser beam so as to form the laser detection light curtain 6; the area array CCD target 2 is arranged at the center of the bottom of the main body frame 1, the area array CCD target 2 is electrically connected with the upper computer 2 through a data interface 7, an outer cover of a metal shell 9 is arranged outside the area array CCD target, the area array CCD target is protected by the metal shell 9 and prevented from being damaged in the test, and the view field of the area array CCD target 2 is intersected with the laser detection light curtain 6.
Further, as further shown in fig. 2 and 3, in this embodiment, the main body frame 1 includes a first frame 10 disposed on a horizontal plane and a second frame 11 disposed on a vertical plane, the second frame 11 is disposed on top of one side of the first frame 10, two sides of the second frame 11 are connected to two side walls of the first frame 10 through connecting rods 12 disposed obliquely, specifically, two ends of the connecting rods 12 are hinged with mounting seats 20, the mounting seats 20 are fixed on fixing plates 18, and the mounting seats 20 are fixed at corresponding positions of the first frame 10 and the second frame 11 through second screws 19. The first frame 10, the first frame 10 and the connecting rod 12 form a right-angle triangle shape, and a fixed cross rod 8 is arranged in the middle of the first frame 10; the photodiode coding array 5 is arranged in the middle of the top of the second frame 11, the line laser 4 is arranged in the middle of one side of the first frame 10 away from the second frame 11, and the area array CCD target 2 is arranged in the center of the top of the fixed cross bar 8.
Further, in this embodiment, the second frame 11 includes a first column 22, a third column 24, and a second column 23 connecting the top ends of the first column 22 and the third column 24, where a photoelectric detection unit is disposed in the second column 23, and the photoelectric detection unit includes an adaptive circuit board 25, a slit 26, and an optical lens 27 sequentially disposed from inside to outside; the photodiode coding array 5 is mounted on the adaptive circuit board 25 and directed towards the laser light curtain 6, and the optical lens 27 is configured to absorb and focus the laser energy onto the photodiode coding array 5, the whole process being controlled by the adaptive circuit board 25. The slit 26 is used for reducing interference of laser on the received signals of the photodiode coding array and improving the testing precision of the testing system.
As shown in fig. 4 and 5, in the present embodiment, the area array CCD target 2 includes a housing 34 and an optical lens 28 disposed on the upper surface of the housing 34, an electrical box is disposed in the housing 34, and an area array CCD camera 30, a power supply 31, a signal acquisition unit 32 and an image processing unit 33 are disposed in the electrical box; the area array CCD camera 30 is positioned vertically below the optical lens 28 and is configured to collect an image sequence of a flying target, a photosurface 37 and a focusing plane 35 are sequentially arranged on one side of the area array CCD camera 30 facing the optical lens 28, and the energy of the laser beam is absorbed and acquired through the optical lens 28 and can be converged on the photosurface 37 of the area array CCD camera 30; the power supply 31 is configured to supply power to the line laser 4, the signal acquisition unit 32, and the image processing unit 33; the signal acquisition unit 32 is connected with the photodiode coding array 5, is configured to acquire signal waveforms of the fragment targets passing through the laser detection light curtain 6, and transmits the signal waveforms to the upper computer 3, and the image processing unit 33 is configured to preprocess image sequence information acquired by the optical lens 28 and acquired by the area array CCD camera 30; the two sides of the shell 34 are provided with first fixing blocks 14, the first fixing blocks 14 are fixed in the middle of the fixing cross rod 8 through first screws 13, and the top of the shell 34 is provided with a leveling bubble 29. When the fragmented object passes through the laser detection light curtain 6, it becomes a bright object in the image sequence acquired by the area array CCD camera 30.
In this embodiment, the wavelength of the laser beam emitted from the line laser 4 is 650nm, the emission angle of the fan-shaped laser beam emitted from the line laser 4 is 90 °, and the fan-shaped laser beam intersects with the detection field of view of the area array CCD target 2 to form a detection region.
Further, in this embodiment, a motor 36 is further disposed in the electrical box, and an output shaft of the motor 36 is connected to the focusing plane 35, which is used to change the focusing plane when the multi-objective coincidence or shielding occurs at a certain moment when the image sequence is collected by the area array CCD camera 30, so that the front defocusing shielding fragment is seriously weakened during imaging, thereby realizing perspective effect and achieving the purpose of distinguishing and identifying multiple objectives.
In order to adjust stability, in this embodiment, four bottom corners 15 are provided at four corners of the main body frame 1, the bottom corners 15 are connected to the four corners of the first frame 10 by studs 16, and knobs 17 are provided on the studs 16, and the knobs 17 are configured to adjust the height of the main body frame 1 by adjusting positions between the studs 16 and the bottom corners 15.
The invention also provides a patch group testing method combining area array CCD imaging and photoelectric encoding, which adopts the testing device, and comprises the following steps:
step 1, when a fragment group enters a detection area and reaches a laser detection light curtain 6, triggering an area array CCD target 2 to start working, and collecting a fragment image sequence; when the broken piece passes through the laser detection light curtain 6, a signal acquisition unit 32 connected with the photodiode coding array 5 acquires signals and determines the position of a coding point for receiving detection signals;
step 3, as shown in fig. 7, determining that an included angle between the ith target fragment passing through the laser detection light curtain 6 and the field center of the optical system of the area array CCD target 2 is alpha i An expression;
Step 5, determining the vertical distance s between the ith target fragment and the photodiode array 5 when the ith target fragment passes through the laser detection light curtain 6 i ；
Step 6, as shown in fig. 8, determining the angle delta between the ith photodiode and the center line of the laser detection target surface according to the photodiode code number of the target passing signal received by the photodiode code array 5 i ；
x i ＝3(i-1/2)+s i tanδ i -L/2
y i ＝h i -2d tanθ
z i ＝-s i 。
the invention is based on the existing test technical means, a laser detection light curtain is formed by using line laser and a photodiode coding array, a detection area is formed by intersecting the line laser and a field of view of an area array CCD (charge coupled device) at a certain angle, when a broken piece passes through the detection area, the luminous flux at a certain position of the photodiode coding array is caused to change, the coordinate information of a coding point sending a signal at the moment is recorded, and the spatial position of the broken piece is calculated by combining the pixel coordinate information of the broken piece on the area array CCD; the device has a simple structure, can accurately measure the space scattering parameters of the fragment groups, can accurately match and identify the fragment groups generated by the explosion of the projectile, can accurately measure the space scattering parameters of the fragment groups, and provides effective data support for the evaluation of the target damage efficiency.
The above embodiments are merely preferred embodiments of the present invention, the protection scope of the present invention is not limited thereto, and any simple changes or equivalent substitutions of technical solutions that can be obviously obtained by those skilled in the art within the technical scope of the present invention disclosed in the present invention belong to the protection scope of the present invention.
Claims (7)
1. The method for testing the fragment group by combining the planar array CCD imaging and the photoelectric coding is characterized by being realized based on a fragment group testing device, wherein the fragment group testing device comprises an L-shaped main body frame (1), an planar array CCD target (2) and an upper computer (3); a photodiode coding array (5) is arranged in the middle of the top of one side of the main body frame (1), a line laser (4) is arranged in the middle of the bottom of the other side far away from the photodiode coding array (5), a laser detection light curtain (6) is formed by emitting a linear laser beam obliquely upwards through the line laser (4), and the photodiode coding array (5) is used as a photoelectric detection unit to receive the laser beam so as to form the laser detection light curtain (6); the area array CCD target (2) is arranged at the center of the bottom of the main body frame (1), the area array CCD target (2) is electrically connected with the upper computer (2) through a data interface (7), and the outer part of the area array CCD target is provided with an outer cover of a metal shell (9);
the test method comprises the following steps:
step 1, when a fragment group enters a detection area and reaches a laser detection light curtain (6), triggering an area array CCD target (2) to start working, and collecting a fragment image sequence; when the broken piece passes through the laser detection light curtain (6), a signal acquisition unit (32) connected with the photodiode coding array (5) acquires signals, and the position of a coding point for receiving detection signals is determined;
step 2, establishing an image coordinate system uov, taking the pixel center point of the acquired image as an origin, taking a bright target on the image as a fragment target, and listing the image coordinates (u i ,v i ) Wherein i= (1, 2,) n, n is the number of fragments;
step 3, determining that an included angle alpha between the ith target fragment passing through the laser detection light curtain (6) and the field center of the optical system of the area array CCD target (2) is i An expression;
step 4, determining the height h of the ith target fragment passing through the laser detection light curtain (6) i ；
Step 5, determining the vertical distance s between the ith target fragment and the photodiode array (5) when the ith target fragment passes through the laser detection light curtain (6) i ；
Step 6, determining the angle delta between the ith photodiode and the central line of the laser detection target surface according to the photodiode code number of the target-passing signal received by the photodiode code array (5) i ；
Step 7, a spatial position coordinate system is established by taking the center of the photodiode coding array (5) as an origin, the vertical distance between the optical center of the line laser (4) and the field center line of the area array CCD target (2) is d, the length of the photodiode coding array (5) is L, and then the ith target fragment passes through the spatial position of the detection areaPut (x) i ,y i ,z i ) The calculation result of (2) is;
2. the method for testing the fragment group by combining area array CCD imaging and photoelectric encoding according to claim 1, wherein the main body frame (1) comprises a first frame (10) arranged on a horizontal plane and a second frame (11) arranged on a vertical plane, the second frame (11) is arranged at the top of one side of the first frame (10), two sides of the second frame (11) are connected with two side walls of the first frame (10) through connecting rods (12) arranged in an inclined manner, the first frame (10), the second frame (11) and the connecting rods (12) form a right triangle shape, and a fixed cross rod (8) is arranged in the middle of the first frame (10); the photosensitive diode coding array (5) is arranged in the middle of the top of the second frame (11), the line laser (4) is arranged in the middle of one side, far away from the second frame (11), of the first frame (10), and the area array CCD target (2) is arranged in the center of the top of the fixed cross rod (8).
3. The method for testing the fragment group combining the area array CCD imaging and the photoelectric coding according to claim 2, wherein the second frame (11) comprises a first column body (22), a third column body (24) and a second column body (23) which is connected with the top ends of the first column body (22) and the third column body (24), a photoelectric detection unit is arranged in the second column body (23), and the photoelectric detection unit comprises an adaptive circuit board (25), a slit (26) and an optical lens (27) which are sequentially arranged from inside to outside; the photodiode coding array (5) is mounted on the adaptive circuit board (25) and faces the laser light curtain (6), and the optical lens (27) is configured to absorb laser energy and collect the laser energy onto the photodiode coding array (5), and the whole process is controlled by the adaptive circuit board (25).
4. The method for testing the fragment group by combining the area array CCD imaging and the photoelectric encoding according to claim 1, wherein the wavelength of laser emitted by the line laser (4) is 650nm, the emission angle of a fan-shaped laser beam emitted by the line laser (4) is 90 degrees, and the laser beam intersects with the detection view field of the area array CCD target (2) to form a detection area.
5. The patch group testing method of the combined planar array CCD imaging and photoelectric encoding according to claim 1, wherein the planar array CCD target (2) comprises a shell (34) and an optical lens (28) arranged on the upper surface of the shell (34), an electric box is arranged in the shell (34), and an planar array CCD camera (30), a power supply (31), a signal acquisition unit (32) and an image processing unit (33) are arranged in the electric box; the area array CCD camera (30) is positioned vertically below the optical lens (28) and is configured to acquire an image sequence of a flying target, and a photosensitive surface (37) and a focusing plane (35) are sequentially arranged on one side of the area array CCD camera (30) facing the optical lens (28); the power supply (31) is configured to supply power to the line laser (4), the signal acquisition unit (32) and the image processing unit (33); the signal acquisition unit (32) is connected with the photodiode coding array (5), is configured to acquire signal waveforms of a fragment target passing through the laser detection light curtain (6), and transmits the signal waveforms to the upper computer (3), and the image processing unit (33) is configured to preprocess image sequence information acquired by the optical lens (28) and acquired by the area array CCD camera (30); the utility model discloses a leveling device for the water tank of the electric motor comprises a shell (34), wherein first fixed blocks (14) are arranged on two sides of the shell (34), the first fixed blocks (14) are fixed in the middle of a fixed cross rod (8) through first screws (13), and leveling blisters (29) are arranged on the top of the shell (34).
6. The method for testing the fragment group combining the planar array CCD imaging and the photoelectric encoding according to claim 5, wherein a motor (36) is further arranged in the electric box, and an output shaft of the motor (36) is connected with the focusing plane (35).
7. The method for testing the fragment group of the combined area array CCD imaging and photoelectric encoding according to claim 1, wherein four corners of the main body frame (1) are provided with four bottom corners (15), the bottom corners (15) are connected with the four corners of the first frame (10) through studs (16), the studs (16) are provided with knobs (17), and the knobs (17) are configured to adjust the height of the main body frame (1) by adjusting the positions between the studs (16) and the bottom corners (15).
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