摘要
本文从系统的观点介绍了一个用于生理信号检测的低噪声、隔离前置放大器。实验表明,一个高性能的前置放大器须配有优质的隔离电源,并在注重低噪声电路设计的同时应特别注重放大器的工艺设计。文中提出了一个采用双层屏蔽的设计方案。
A low-noise isolated preamplifier for physiological signals is described from the viewpoint of system.Experiments show that a good preamplifier must have a high-quality isolated power.Particular attention has been paid the design of technique,as well as the design of low-noise circuit.A design plan of using two metal coats for shielding the preamplifier Was proposed.
出处
《中国医疗器械杂志》
CAS
1992年第6期323-326,368,共5页
Chinese Journal of Medical Instrumentation
