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介绍了一种新型带放大器的压杆式压电压力传感器。该传感器采用压电陶瓷作为敏感元件;为提高其响应速率,采用带声吸收杆式的结构;并充分考虑到测试专用设备的特殊构造,放置放大器及电池的需要,采用了特殊的外观及内腔结构;为提高传感器及其测试系统的响应速率,采用具有高输入阻抗及50Ω输出阻抗的电压放大器,同时也采用SYV- 50- 7- 1较粗的射频传输电缆,减少了爆炸与冲击模拟信号的传输畸变。该传感器经过爆炸洞及爆炸罐压力测试的反复试验,证明性能的确优异
A new type of pressure bar piezoelectric pressure sensor with amplifier is introduced. The sensor uses piezoelectric ceramic as the sensing element. In order to improve its response rate, it adopts the structure with sound absorption rod. Taking full account of the special structure of testing special equipment, the need of placing the amplifier and the battery, the special appearance and inner Cavity structure; To improve the response rate of the sensor and its test system, the use of a high voltage input impedance and 50Ω output impedance of the amplifier, but also with thick coaxial cable SYV- 50-7-1 1 to reduce the explosion and impact simulation Signal transmission distortion. The sensor after repeated explosions and explosive cans stress test repeatedly proved that the performance is indeed excellent