Measuringapparatus can use general digital voltmeter with appropriate accuracy, but generating standard dynamic strain signal is a problem which hasn't been well solved.
测量仪器可用适当精度的通用数字电压表，而标准动态应变的产生则是尚未很好解决的问题。
2
The apparatus includes a digital voltage measuring circuit controllably coupled to selected ones of the voltage measurement electrodes and digitally controlled current sources.