摘要
本文介绍具有差动输入的三运放形式的心电检测前置放大电路及1mV定标电路。定标信号的采集由计算机发出命令控制，通过自动闭锁、复零控制等方式，可获得标准的1mV定标信号。
This paper introduces a method in which the differential amplifier with three operating amplifier and 1 mV caliberating circuit are designed. The acquisition of the standard calibrating signal is controlled by microcomputer(I/O).
出处
《医疗卫生装备》
CAS
1998年第2期6-7,共2页
Chinese Medical Equipment Journal
