提出一种用于解决膛内异常现象探测问题的新技术 ,用PCM硬线传输技术来获取膛内多参数测试信号。研制出适于对火炮膛压单元、加速度单元和火药颗粒对弹底 (IT)作用力 3个物理参量进行测试的复合式压电传感器。并对测试系统及其传感器调理电路进行介绍。实验表明 ,该测试系统工作可靠 A new technique to solve the problem of detection of anomalies in the bore was proposed. Multi-parameter test signals in the bore were obtained by the PCM hard-wire transmission technology. A composite piezoelectric sensor suitable for testing three physical parameters of the force of gun barrel pressure unit, acceleration unit and gunpowder particle on the bomb bottom (IT) was developed. The test system and its sensor conditioning circuit are described. Experiments show that the test system works reliably