附带的电子器件可增加校准时的薄膜加热功能和放大从探头的扩音压力传感器输出的信号。
Additional electronics have been added to provide film heating for calibration and to amplify the signal from the head's microphone pressure sensor.
采用双晶片探头和电子天平对PZT微力传感器进行静态力标定，进而利用双晶片探头和电荷放大器对PZT微力传感器进行准静态标定，微小信号检测通过锁相放大器来实现。
PZT micro -force sensors were calibrated by bimorph and electronic balance in static state and by bimorph and charge amplifier in dynamic state, small signal was tested by amplifier.
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