RU2083944C1 - Device for determination of close pattern - Google Patents

Abstract

FIELD: test of ammunition in target range, in particular, in tests of rifle cartridges at shooting at a multi-lobe target. SUBSTANCE: the position of the projected wounding element is determined according to the position of the wounding element shady spot on the transparent coating of the target at the instant of flying-up of the wounding element to the target. The device uses a target that is indestructible by the wounding elements of the weapon under test, optoelectronic detector optically integrated with the target, storage unit, synchronizer, display device; the optoelectronic detector has an analog-to-digital converter unit, the optoelectronic detector is positioned at an angle to the target plane and made in the form of optically integrated objective lens and fiber-optic image analyzer, whose inlet ends are geometrically similar to the target, and the outlet ends are conjugate to the linear photodetector cell unit, whose outputs are connected to the inputs of the storage unit connected via the analog-to-digital converter unit to the inputs of the display device; the synchronizer output is connected to the additional input of the storage unit. The target may be made if citall. EFFECT: enhanced accuracy. 2 cl, 1 dwg

Description

 The invention relates to the testing of ammunition in a target environment and can be used when testing rifle cartridges for accuracy of battle on a multi-field target.

A device for counting hits in a target containing an indestructible target, an optoelectronic recorder optically coupled to the target, a memory unit, a synchronizer and a display device [2]
The disadvantage of this device is the inability to fix the circular distribution of the slaughter elements of rifle cartridges.

 The aim of the invention is the provision of fixing the circular distribution of the slaughter elements in automatic mode.

 The purpose of the invention is achieved by the fact that in the device for determining the accuracy of fire containing an indestructible target, an optoelectronic recorder optically coupled to the target, a memory unit, a synchronizer and a display device, an analog-to-digital converter unit is additionally introduced, and the optoelectronic recorder is placed at an angle to the target plane and made in the form of optically conjugated objects and a fiber optic image analyzer, the input ends of which are made geometrically similar to the target, and the output The ends are coupled to a block of linear photo-recording elements, the outputs of which are connected to the inputs of a memory block connected through an analog-to-digital converter block to the inputs of a display device, while the synchronizer output is connected to an additional input of a memory block.

 The invention is illustrated in the drawing.

 The drawing shows the tested gun 1, an N-shared target 2, mounted on a rigid base 3, an optoelectronic recorder 4, including a lens 5, an image analyzer 6 and a block of linear photo-recording channels 7, a memory unit 8, a synchronizer 9, an analog block -digital converters 10, the display device 11, on the target is placed optically transparent indestructible destructive element of the munition (conventionally shown) coating 12.

 The target 2 is optically coupled to the electronic recorder 4 using the lens 5. The image analyzer 6 is made N-dimensional and its input end is a geometrically reduced model of target 2, each share having its own output to the block of linear photo-recording channels 7, the N inputs of which are connected to the corresponding outputs of the image analyzer 6 and each of the N-outputs of the block of linear photo-recording channels 7 through a series-connected memory block 8 and the block of analog-to-digital converters 10 connected to the display device 11, the synchronizer 9 is connected with its output to the (N + 1) -input of the memory unit 8, and with its input it can be connected to the mechanism for activating ammunition (this connection is not shown, since the input of the synchronizer can be performed on the acoustic principle or connected to the sensor of the passage of the slaughter element along the path).

 A device for determining the accuracy of fire works as follows.

 The energy of the powder gases slaughter element of ammunition is thrown at the target. The position of the missile slaughter element is fixed by the shadow of it on the transparent coating of the N-lobar target at the time of the approach of the slaughter element to the target. Information about the position of the shadow from the killer element is converted into an electrical signal, which is converted accordingly, synchronizing with the moment the ammunition is activated, it is stored and displayed on the measurement results screen. The transparent coating of the target is performed indestructible from the impact of the slaughter element on it. The target during the test can be highlighted from a point close to the throwing plane of the slaughter element.

 An example implementation of the device.

 To determine the accuracy of firing of hunting rifles, a 55-meter stand is equipped with a test sample, a target, an optoelectronic recorder, a synchronizer and a device for displaying test results.

 Target 1 is made shared, with the number of sectors equal to N, and strengthened on a rigid base. A protective coating 12 is made on the target, made transparent and indestructible upon impact, for example, from a material such as ceramic. The target is optically coupled through the lens 5 to the input of the image analyzer 6 of the optoelectronic recorder 4. The input end of the image analyzer is a reduced geometrically similar model of the target, each share having its own output to the input of a block of linear photo-recording channels, and each of the N-outputs of a block of linear photo-recording channels 7 through a series-connected memory block 8 and the block of analog-to-digital converters 10 is connected to the display device 11. The synchronizer 9 is connected to the block PA Yati 8.

 Lens 5 constructs a display of the N-fractional target in the focal plane where the input end of the image analyzer is located, which is made, for example, in the form of an N-fractional photodetector, geometrically similar to target 2. For manufacturing the image analyzer, the manufacturing technology of the 4-sector PDK photodetector can be used -142 (see Ananenko M. D. et al. Handbook "Optical Radiation Receivers". Radio and Communications. 1987, p. 65). Each of the N-outputs of such a photodetector is connected to the corresponding input of a linear photo-recording channel from block 7, which is a parallel set of N identical channels. The output of each linear channel is connected to the corresponding input of memory block 8, which is a set of N identical analog storage devices (described in the reference book “Analog and Digital Integrated Circuits”. Edited by S. V. Yakubovsky. M. Radio and Communications. 1985, p. . 369,370). The value of the analog signal from the output of the channel of block 7 is stored at the same time by the synchronization signal 9, which is ensured by combining the “record” inputs of analog storage devices. The output of each analog storage device of block 8 is connected to the corresponding input of the block of analog-to-digital converter (ADC) 10, which is, for example, a set of N identical ADC channels that convert the voltage from the output of the analog storage device to binary code with its subsequent indication on the display device eleven.

 When firing a hunting rifle 1, for example, with a shot at a target 2, the synchronizer 9 registers the beginning of the movement of the slaughter element (shot), then after the estimated time, the synchronizer 9 issues a “write” command to the memory unit 8, or rather to each of its memory devices about the beginning recording information. The synchronizer can be made in the form of a piezosensor mounted on the barrel of the gun 14, and a delay circuit, the input of which is connected to the output of the piezosensor, and the output to the memory unit 8.

 The lens 5 is located in the immediate vicinity of the firing plane (shown by a dotted line). It was experimentally established that the angle between the optical axis of the lens and the firing plane should not exceed twenty angular minutes. In the focal plane of lens 5, a picture of the distribution of the flying fraction against the background of the target is constructed. This picture is converted to the corresponding voltage at the output of the linear photo-recording channels of block 7, namely, the larger the number of images of slaughter elements present at the input end of the image analyzer portion 6, the lower the voltage level at the output of the photo-recording channel corresponding to this target fraction. The application of the “Record” signal to the analog storage devices in block 8 provides the storage of the state corresponding to the picture of the distribution of the fraction in the focal plane of the image analyzer 6 at the moment the mass of the fraction is most close to the target. It was experimentally established that it is optimal to fix the distribution of the fraction at a distance of 1 2 m from the target. A protective coating on the target is applied so that after the impact of the slaughter elements on the target there are no traces. The target during testing can be illuminated by a light source installed in the immediate vicinity of the firing plane.

 The proposed method for assessing the accuracy of firing and the stand can be used to assess the quality of rifle cartridges by a known method (see. "Hunting" magazine. N 2, 1980, p. 20 21).

 Thus, the use of the invention provides high accuracy and mechanization of testing hunting rifles and their ammunition.

Claims (2)

 1. A device for determining the accuracy of firing, containing a target indestructible by the lethal elements of the tested weapon, an optoelectronic recorder optically coupled to the target, a memory unit, a synchronizer and a display device, characterized in that an analog-to-digital conversion unit is inserted into it, and an optical-electronic the recorder is placed at an angle to the target plane and is made in the form of an optically conjugated lens and a fiber optic image analyzer, the input ends of which are made geometrically similar targets, and the output ends are coupled to a block of linear photo-recording elements, the outputs of which are connected to the inputs of a memory unit connected via an analog-to-digital conversion unit to the inputs of a display device, while the output of the synchronizer is connected to an additional input of the memory unit.  2. The device according to p. 1, characterized in that the target is made of glass.