水中弹药的电磁感应测速方法研究  

Velocity Measurement Method of Underwater Projectile Based on Electromagnetic Induction

作　　者：秦会国[1] 马峰[1] 仲霄[1] 卢熹[1] 严文康[1] 王树山[1] 

机构地区：[1]北京理工大学 爆炸科学与技术国家重点实验室,北京100081

出　　处：《测试技术学报》2012年第4期281-287,共7页Journal of Test and Measurement Technology

基　　金：国家重点实验室基金项目(ZDKT08-4-6)

摘　　要：为解决现有的水下速度测试装置存在测试精度低和受水介质特性影响大的问题,设计了一种基于电磁感应原理的测速装置感应式线圈靶水下测速系统.针对水介质特性对测试系统的影响,对线圈靶进行了密封设计,对测试电路进行了抗干扰设计,并进行了水中弹药的速度测试实验.实验结果表明:测速系统受水介质特性干扰小,所测信号基本不含干扰信号,且对弹丸外弹道无影响;线圈靶与高速摄影的测速结果相比,测速精度高,相对偏差在5%以内,且可测速度范围宽,可广泛应用于水中弹药速度的测试.The existing velocity measurement apparatus of underwater projectile has low accuracy, and the property of water has great influence on it. We devised an induction-type coil target velocity measurement system based on electromagnetic induction. Water-proof design to the coil target and anti-interference design to the measurement circuit against the interference of water were realized. We carried out the velocity measurement experiments, and the results indicate that： The induction-type coil target velocity measurement system has little disturbance of water and has no influence on the ballistic of projectile; The relative deviation is less than 5 % between the measurement results of the system and the high-speed photography, which shows that the system has high measurement accuracy; The range of the velocity that can be measured is wide and the system can be widely used in the velocity measurement of underwater projectile.

关 键 词：水中弹药 线圈靶 速度测试 电磁感应 

分 类 号：TM936.1[电气工程—电力电子与电力传动]