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压电式测振仪
压电式测振仪使用压电式拾振器,主要测量振动加速度。压电式加速度计输出阻抗高,信号进人放大器前必须进行电荷放大或阻抗变换。其系统频带宽,但抗干扰能力差,易受电磁场的影响,因此对导线和插件要求有较高的绝缘电阻,以免影响系统阻抗
expl.
piezo-electric detector
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