微机化微电流电分析仪的抗干扰及其软件设计

The Anti-interference and Solfware Device of the Microcomputer-based Electroanalysis Instrument for Microcurrent

本文简单地介绍微机化微电流电分析仪的工作原理，着重于论述仪器的抗干扰及软件设计。由于采用了与工频同步的数─模转换与采样／保持等软硬件结合的抗干扰技术，因而提高了仪器的测量精度和可靠性。

This paper intrudues briefly the principles of microcomputer-basd electroanalysis instrument for the microcurrent, and then the anti-interference and the solfware device to the instrument are discussed emphatically. Because of that it is adopted with the digital-analogy conversion and the sampling/holding and others are synchronized by the industrial frequency,of the technique for the anti-interference,of the solfware combined with the hardware, so the measurement precision and reliability are raised in this instrument.