Remote measuring device for working state transition coefficient of piezoelectric accelerometer

摘要

The practical model belongs to the field of measurement technology, which is designed to measure the conversion coefficient of piezoelectric accelerometer regularly and remotely (the next one is a piezoelectric accelerometer(a) In the case of not removing the pressure accelerometer and objects, the free vibration of the sensitive element is excited and its parameters are determined Operation mode.;The device contains a connector for connecting the piezoelectric accelerometer,Switch,Test voltage source,Charge amplifier,Analog to digital converter,Measurement and control unit,Transmission coefficient correction unit,Control mechanism,Interface unit,One approximate unit and one integrity detection unit;The device can remotely determine the current value of the conversion coefficient of the piezoelectric accelerometer, so as to modify the transmission coefficient of the measurement channel Vibration systemmonitor. The main advantage is that by reducing the sensitivity to pulse effect and aperiodic interference, the accuracy of transformation coefficient is improved. Three liters.