Shot and flash synchronization method, device and system

Abstract

The embodiment of the invention provides a shot and flash synchronization method, device and system to solve the technical problem that in the prior art, due to the fact that the states of all shots are different, synchronization errors between the shots and flash are uncertain, and the test success probability is reduced. The method comprises the steps that when a shot hits a target after triggering a flash triggering point, flash generation equipment outputs flash to the target. The device comprises a time calculation unit; a setting unit used for setting the time required by the shot to hit the target from the flash triggering point at the speed as the delay output time of the flash after the flash triggering point is triggered by the shot; and a control unit used for controlling the flash generation equipment to output the flash to the target after the delayed output time after the flash triggering point is triggered by the shot. According to the embodiment of the invention, when the shot hits the target after triggering the flash triggering point, the flash generation equipment outputs the flash to the target, so that high-precision synchronization of the flash and the shot of a gas gun is realized.

Description

technical field [0001] The invention relates to a projectile and flash synchronization method, device and system. Background technique [0002] Flash X-ray photography is widely used in dynamic tests to shoot test images such as impact, shock wave, and shock deformation. The flash pulse width of this type of X-flash machine is extremely short (ns level), so it is necessary to ensure precise synchronization between the impact moment and the flash moment , otherwise the required image cannot be captured correctly. However, the projectile motion is a mechanical motion of tens of milliseconds, and the time scale difference between the two is huge, so synchronization is highly challenging. The initial conditions of the cannon (air pressure, projectile mass, etc.) are calculated by calculating the expected bullet speed, and then use the predicted bullet speed to set the timing sequence of the X flasher. This solution is feasible under the condition that a large synchronization err...

AI Technical Summary

Problems solved by technology

[0002] Flash X-ray photography is widely used in dynamic tests to shoot test images such as impact, shock wave, and shock deformation. The flash pulse width of this type of X-flash machine is extremely short (ns level), so it is necessary to ensure precise synchronization between the impact moment and the flash moment , otherwise the required image cannot be captured correctly. However, the projectile motion is a tens of millisecond mechanical motion, and the time scale difference between the two is huge, so synchronization is highly challenging. The initial conditions of the cannon (air pressure, projectile mass, etc.) are calculated by calculating the expected bullet speed, and then use the predicted bullet speed to set the timing sequence of the X flasher. This solution is feasible under the condition that a large synchronization error is allowed, but the air gun The state cannot be completely the same between each round of operation, and the air pressure, projectile quality, inner bore flash cleanliness, etc. are all changing. Theoretical calculations cannot take into account so many variables. Therefore, under the experimental conditions of nanosecond flash X flash camera, this scheme Synchronization errors of , significantly reduce the probability of trial success

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