天幕立靶探测光幕响应时间一致性测量方法研究

田亚男; 田会; 袁云

doi:doi:10.5768/jao201940.0303005

应用光学, 2019, 40 (3): 483, 网络出版: 2019-06-10

天幕立靶探测光幕响应时间一致性测量方法研究

Measurement method of response time consistency for sky screens vertical target

论文大纲

田亚男 ^*田会袁云

作者单位

西安工业大学光电工程学院，陕西西安 710021

摘要

为验证弹丸穿过天幕立靶时6个光幕响应时间是否一致，以提高测试设备测速精度，提出了一种用于检测天幕立靶光幕响应时间一致性的测量方法，设计了一种基于该测量方法的模拟弹丸过幕信号源测试装置。该装置调用存储在ROM中的弹丸轮廓数据，经DA转换控制两路光源间隔亮暗变化一次，用于模拟弹丸依次穿过探测光幕所遮挡的光能量变化。利用信号采集与处理仪同步采集两路输出信号时间间隔，与装置设定时间间隔的差值比较完成测试。测试结果表明：输出两路信号的时间间隔与设定时间间隔间的差值均小于1 μs，满足6个光幕响应时间一致性技术指标要求，该测试装置及测量方法可用于天幕立靶光幕响应时间一致性测量。

Abstract

In order to verify whether the response time of 6 light screens is consistent while the projectile passing through the sky screens vertical target, and to improve the velocity measurement accuracy of test equipment，a measurement method for detecting the response time consistency of sky screens vertical target was proposed, and a test device based on this method of signal source for simulating projectile over-screen was designed. The device controls the two light source intervals to change lightly and darkly by digital-analog(DA) conversion, by calling the projectile contour data stored in the ROM, which is used to simulate the instantaneous change of light energy while projectile passing through the light screen. The test was completed by comparing the difference value between the time interval of two output signals collected synchronously by the signal acquisition and processing instrument with the delay time interval by the device. The test results show that the difference value between the output signal time and the set delay time is both less than 1 μs, which satisfies the technical requirements of the response time consistency of 6 light screens, the test device and the measurement method can be used for the measurement of response time consistency for the sky screens vertical target.

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田亚男, 田会, 袁云. 天幕立靶探测光幕响应时间一致性测量方法研究[J]. 应用光学, 2019, 40(3): 483. TIAN Yanan, TIAN Hui, YUAN Yun. Measurement method of response time consistency for sky screens vertical target[J]. Journal of Applied Optics, 2019, 40(3): 483.

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