用于电热化学炮弹道测试的隔离放大器设计

The Design of Isolation Amplifier for Measurement of Ballistic in ETCG

在电热、电磁发射系统中,由于存在高电压、大电流的脉冲放电过程,使得系统的各单元出现较大的电位差并产生电磁共模干扰,存在造成自动控制系统、测试系统的损坏及人身安全的隐患。本文针对电热发射技术研究中的弹道测试系统,设计、研制了用于进行压力测试、放电电压及电流测试的隔离放大电路。实验数据表明,该方案设计合理,各项性能指标满足实验的要求。

Because high current discharging causes common interference and potential in the measurement system in ETCG,it is possible to danger electrical equipment and safety of human. This paper designs measurement cir- cuits with isolation amplifier for measurement of gas pressure and discharging current and voltage in ballistic ex- periment. The test shows these measurement circuits are reliable and can meet the need of ballistic experiment.