voltage signal input

The amplifier input is a voltage proportional to the photocurrent signal produced by a photodiode, which is irradiated by a modulated light beam at the same chopper frequency.

放大器输入为电压信号，与光敏二极管产生的光电流信号成比例。调制光柱以断路器同样的频率照射光敏二极管。

If the AC voltage at the input is large, part of this signal is rectified, producing an error in the DC signal being measured.

如果输入端的交流电压很大，其一部分信号被整流，于是在被测的直流信号中产生了误差。

That the pressure signal is not linear with input voltage for pressure sensors found in experiments. The phenomenon is called electric nonlinearity for sensitivity.

实验发现压阻型压力传感器的压力输出信号与外加电压并不是线性关系，存在着灵敏度电压非线性。