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毫米波近炸探测器超宽带电磁脉冲防护加固措施研究 被引量:1
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作者 陈凯柏 刘少华 +2 位作者 毕军建 高敏 周晓东 《装备环境工程》 CAS 2022年第11期27-33,共7页
目的研究毫米波引信近炸探测器超宽带(Ultra-wideband,UWB)电磁脉冲防护加固措施,提高引信的电磁防护能力。方法利用超宽带辐照试验平台,开展辐照试验,通过测试,确定受损探测器的损伤部位,明确辐照效应机理,并提出针对性加固措施。结果... 目的研究毫米波引信近炸探测器超宽带(Ultra-wideband,UWB)电磁脉冲防护加固措施,提高引信的电磁防护能力。方法利用超宽带辐照试验平台,开展辐照试验,通过测试,确定受损探测器的损伤部位,明确辐照效应机理,并提出针对性加固措施。结果超宽带电磁脉冲可使探测器出现死机或硬损伤的现象,受试探测器的效应场强阈值在50~80 kV/m。死机可在重启后恢复,而硬损伤为不可恢复现象。结论毫米波引信近炸探测器对超宽带电磁脉冲较为敏感,锁相环回路是探测器的敏感部位。探测器暴露在辐照场下的射频电路和天线窗口是超宽带能量的主要耦合通道。采取改进元器件布局、更换器件和屏蔽线等加固措施后,探测器超宽带的防护能力有较大提升,证明了加固措施的有效性。 展开更多
关键词 引信 近炸探测器 超宽带电磁脉冲 防护加固 辐照试验 硬损伤
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An Analysis on the Mechanism Governing the Effect of Bomb Length upon the Sensitivity of Detection of a Capacitance Fuze
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作者 邓甲昊 施聚生 《Journal of Beijing Institute of Technology》 EI CAS 1994年第1期51+43-50,共9页
For a detector in a capacitanee fuze working in an electrostatic field, the bomblength (effective length of the conductor part) is an important factor affecting the sensitivityof detection. For the two different kinds... For a detector in a capacitanee fuze working in an electrostatic field, the bomblength (effective length of the conductor part) is an important factor affecting the sensitivityof detection. For the two different kinds of detecting circuit models in general use (the frequency-sensitive and the amplitude-coupling ), mechanism of the effect of bomblength on the sensitvity of detection is analyzed. Through the analysis a conclusion in fullagreement with experimental results has been drawn, that is. the longer the bomb length,the higher the sensitivity, on the condition that the sizes and the sites of the detecting electrodes and bomb diameter remain unchanged. 展开更多
关键词 proximity fuze detectors sensitivity circuit analysis/capacitance fuze
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