锁相环路对噪声的抑制性能与锁相放大技术

PHASE LOCKED LOOP FOR NOISE SUPPRESSION AND LOCK-IN AMPLIFICATION TECHNIQUE

本文从锁相技术基本原理出发,运用统计观点对噪声和干扰抑制作用从六个方面加以定性和定量分析,从而突出锁相环路的窄带虑波特性,并介绍了 SR510-型锁相放大器具有高精度、高灵敏度、高抗扰度和高增益放大的性能.

Based on the theory of phase locked loop-technigue,applying the point of view of statistics,thesuppression of noise and spurious was explained in six parts and the MoSR510 phase locked loop ampli-fier was introduced also.