利用转速测试弹丸炮口速度的方法研究
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摘要
介绍了一种利用转速测试弹丸炮口速度的方法。地磁传感器与测试电路安装在弹丸或引信里,当弹丸发射、地磁传感器的线圈随弹丸旋转时,线圈切割磁力线而产生周期性感应电动势。测试电路采集到感应电动势信号并存储于电路内部的存储器里。在实弹测试回收测试电路后读取存储器里的数据,可以得到弹丸在炮口处的转速值,结合火炮的炮口缠度可以计量或计算出弹丸在炮口的初速值。经过实弹测试验证,该测试方法可测量炮口处弹丸的速度。
A method for the muzzle velocity measurement utilizing the rotational speed was put forward.The earth magnetic field sensor and test circuit were installed in bullet or fuse.When the projectile rotates,the coil in the sensor would cut the earth magnetic line and periodically produce inductive electromotive force.Then,the test circuit acquired the signal and saved it in the memory device.After reclaiming the circuit,the data could be obtained from the memory and the muzzle rotational speed could be known.According to the twist pitch of rifling,the projectile's muzzle velocity could be found out.The method was verified by using live ammunition test.
A method for the muzzle velocity measurement utilizing the rotational speed was put forward.The earth magnetic field sensor and test circuit were installed in bullet or fuse.When the projectile rotates,the coil in the sensor would cut the earth magnetic line and periodically produce inductive electromotive force.Then,the test circuit acquired the signal and saved it in the memory device.After reclaiming the circuit,the data could be obtained from the memory and the muzzle rotational speed could be known.According to the twist pitch of rifling,the projectile's muzzle velocity could be found out.The method was verified by using live ammunition test.
引文
[1]裴东兴,李新娥,马铁华,等.利用转速测试弹丸炮口速度的方法:中国,201110049795.1[P].2011-08-17.PEI Dong-xing,LI Xin-e,MA Tie-hua,et al.The method for uti-lizing rotational speed to measure muzzle projectile velocity:Chi-na,201110049795.1[P].2011-08-17.(in Chinese)
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[7]马玲,蔡征宇,程风雷,等.毫米波测速雷达的测速原理[J].弹道学报,2003,15(4):87-91.MA Ling,CAI Zheng-yu,CHENG Feng-lei,et al.The principleof microwave velocity radar[J].Journal of Ballistics,2003,15(4):87-91.(in Chinese)
[2]徐文耀.地磁学[M].北京:地震出版社,2003.XU Wen-yao.Geomagnetism[M].Beijing:Earthquake Publish-ing House,2003.(in Chinese)
[3]程守洙,江之永.普通物理学[M].北京:人民教育出版社,1979:217-226.CHENG Shou-zhu,JIANG Zhi-yong.General physics[M].Bei-jing:People’s Education Press,1979:217-226.(in Chinese)
[4]杨青,李利锋,范锦彪,等.地磁传感器在弹载测试系统中的应用[J].传感器与微系统,2009,28(10):108-109.YANG Qing,LI Li-feng,FAN Jin-biao,et al.Application of earthmagnetic field sensor in bullets test system[J].Transducer andMicrosystem Technologies,2009,28(10):108-109.(in Chi-nese)
[5]刘朝华,祖静,马铁华,等.子母弹抛撒角速度测试技术研究[J].弹箭与制导学报,2006,26(2):1154-1155.LIU Chao-hua,ZU Jing,MA Tie-hua,et al.Research in the tes-ting method of angular speed of shrapnel[J].Journal of Projec-tiles,Rockets,Missiles and Guidance,2006,26(2):1154-1155.(in Chinese)
[6]王涛.用微功率毫米波雷达测定高炮初速的方法[J].测试技术学报,2004,18(3):240-243.WANG Tao.The method of muzzle velocity measurement based onmillimeter wave radar of micro-power for antiaircraft gun[J].Jour-nal of Test and Measurement Technology,2004,18(3):240-243.(in Chinese)
[7]马玲,蔡征宇,程风雷,等.毫米波测速雷达的测速原理[J].弹道学报,2003,15(4):87-91.MA Ling,CAI Zheng-yu,CHENG Feng-lei,et al.The principleof microwave velocity radar[J].Journal of Ballistics,2003,15(4):87-91.(in Chinese)
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