期刊论文

中文

南华大学学报(自然科学版)

1673-0062

2000

01

71-74

10.19431/j.cnki.1673-0062.2000.01.015

本校为第一机构

本文介绍了热释电探测器前置放大器的噪声、阻抗匹配和带宽问题 ,指出在保证前置放大器具有较高灵敏度的情况下 ,使输出噪声电平达到系统所限制的最小范围内的可行措施

This paper studies the problems of the pre amplifier noise,impedance matching and the width of frequency band in the pyroelectric detector,and suggests feasible measures to make output noise level reach the minimal range limited by this system under the circumstance that ensu...