| 一种新型的带放大器的压杆式压电压力传感器及其在爆炸测试技术中的应用 |
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| 引用本文： | 孙晓明,黄正平,白春华,丁儆.一种新型的带放大器的压杆式压电压力传感器及其在爆炸测试技术中的应用[J].中国安全科学学报,1998(5). |
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| 作者姓名： | 孙晓明 黄正平 白春华 丁儆 |
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| 作者单位： | 北京理工大学爆炸灾害预防、控制国家重点实验室 |
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| 摘 要： | 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
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| 关 键 词： | 压电压力传感器 电压放大器 电荷放大器 |
A New Type of Piezoelectric Pressure Gauge with an Amplifier and Its Application |
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| Sun XiaomingDoctoral Student,Huang Zhengping,Bai Chunhua,Ding Jing.A New Type of Piezoelectric Pressure Gauge with an Amplifier and Its Application[J].China Safety Science Journal,1998(5). |
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| Authors: | Sun XiaomingDoctoral Student Huang Zhengping Bai Chunhua Ding Jing |
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| Abstract: | A new type of piezoelectric pressure gauge with an amplifier is presented. Piezoelectric ceramic is used here as the sensing element. A sound absorption pole and a voltage amplifier with high-input impedance and 50Ω-output impedance are used for improving the response speed of the gauge and its testing system. At the same time, SYV-50-7-1 radio frequency transmission thick cables are used to decrease the distortion of shock and detonation analog signals. The gauge is tested with repeated experiments in explosion caves and the results are quite satisfactory. |
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| Keywords: | Piezoelectric pressure gauge Voltage amplifier Charge amplifier |
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