An enhanced primary shock calibration procedure to reduce the zero shift effect of piezoelectric transducers by using a virtual amplifier
An enhanced primary shock calibration procedure to reduce the zero shift effect of piezoelectric transducers by using a virtual amplifier
复制标题
增强的主冲击校准程序，通过使用虚拟放大器来减少压电换能器的零移效应
DOI：
10.1088/0957-0233/27/9/095007
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发表时间：
2016
影响因子：
2.4
通讯作者：
Thomas Bruns
中科院分区：
文献类型：
--
作者：
野里英明;大田明博;穀山渉;Henrik Volkers;Thomas Bruns
电荷放大器的低频响应诱导加速度计（压电换能器和电荷放大器的组合）输出电压为零移。因此，设计了一个与电荷放大器具有相同输入输出特性的虚拟放大器，以减小零移效应。通过对虚拟放大器施加输入加速度，评估了压电换能器的电荷冲击灵敏度。研究结果表明，电荷冲击灵敏度与振动标定结果相当。
The low-frequency response of a charge amplifier induces an accelerometer (a combination of a piezoelectric transducer and a charge amplifier) output voltage with zero shift. Hence, a virtual amplifier with same input–output characteristics as the charge amplifier was designed to reduce the zero shift effect. The charge shock sensitivities of a piezoelectric transducer were evaluated by applying the input acceleration to the virtual amplifier. The results of the study indicated that the charge shock sensitivities were comparable to the vibration calibration results.