Design and Simulation of a Lock-in Amplifier Based on Simplorer
Lock-in amplifiers are of great practical values in that they can extract weak signals from extremely noisy environment However, traditional lock-in amplifiers fail in making the phase of reference signals track the phase of input signals automatically, a Simplorer-based lock-in amplifier, therefore, was designed and simuiated to tackle this problem. This lock-in amplifier enabled the two phases keep consistent with each other and thus achieved the function of cross-correlation detection. Consequently, it showed better performance in lessening noises and enhanced the function of extracting weak signals from intense noises, and by processing these signals, the desirable signal could be obtained.
Simplorer lock-in amplifier design simulation
YANG Qing
Department of Electrical Engineering, National Institute of Hubei, Enshi, Hubei, China
国际会议
2009 International Workshop on Information Security and Application(2009 信息安全与应用国际研讨会)
青岛
英文
532-537
2009-11-21（万方平台首次上网日期，不代表论文的发表时间）