Picoammeter amplifier gain can be changed as in the voltmetercircuit by using the combination shown in Figure 1-11.
和电压表电路一样,可以使用如图1 - 11所示的组合电路来改变皮安表放大器的增益。
2
The system's digital voltmetercircuit is simple, can measure the voltage 0 ~ 5v, and the four turns on the LED digital display or a single select Show.