【摘要】 提出了一种新型的高性能胎儿心电检测电路。电路由AD公司的仪器放大器AD 6 2 0和LF44 4运算放大器构成 ,结构简单 ,成本低廉 ,但性能优异 ,并且己应用于直接胎儿心电监护设备上。可望用于其它微弱生物信号检测设备。更多还原

【Abstract】 This paper presents a new type of high-powered fetal electrocardiogram detection circuit. Instrumentation amplifier AD 620 of AD Company and operational amplifier are adopted.With its simple structure,low cost and good performance,this circuit has been applied to direct fetal electrocardiogram monitoring device.It may have a wide application in other weak biologic signal checkout equipments.更多还原