Wang HuanMin Li ShiFen. Operational Amplifier of the High Impedance and Low Drift Apply in Micro-current Measurement[J]. Journal of University of Jinan(Social Science Edition), 1994,(1):91-95.
Wang HuanMin Li ShiFen. Operational Amplifier of the High Impedance and Low Drift Apply in Micro-current Measurement[J]. Journal of University of Jinan(Social Science Edition), 1994,(1):91-95.DOI:
is This an artical we have primarily described how the operational amplifier of the high impedance and low drift apply in 5x10-5 A micro-current measurement. We also have described in detail and analysed important problems such as the principle of measurement in measurement circuit and relative error in measurement
circuit and analysed the limit sensitivity in measurement circuit.This measurement circuit has some advantages such as small in volume?short constant time
low drift and high precision so it is loiclely used.