基于Matlab的锁定放大器性能仿真系统  

Simulation System of Lock-in-Amplifier Based on Matlab

作　　者：肖仲喆 黄敏 XIAO Zhong-zhe;HUANG Min(School of Optoelectronic Science and Engineering,Soochow University,Suzhou,215006,China)

机构地区：[1]苏州大学光电科学与工程学院

出　　处：《电气电子教学学报》2019年第5期122-127,共6页Journal of Electrical and Electronic Education

基　　金：国家自然科学基金青年科学基金项目,多层闪存存储系统可靠性优化研究(项目批准号61802272)

摘　　要：本文设计了一个基于Matlab的锁定放大器仿真系统,以图形界面方式,能够对锁定放大器在各种不同参数设置条件下的性能、双相锁定放大器、锁定放大器级联使用等情况进行仿真。教学实践表明,该仿真系统能够使学生深入观察锁定放大器输出信号的细节内容,有效的帮助学生理解锁定放大器的工作原理。In this paper, we developeda simulation system of lock-in-amplifier (LIA) based on Matlab. With the graphic user interface, a serial of simulation functions include LIA performance under different parameter settings, double phase LIAs, and cascade LIAs. The teaching experience shows that this simulation system can help students to observe the details in the output of LIAs, and help students to understand the operational principles of LIA.

关 键 词：锁定放大器 仿真 微弱信号检测 

分 类 号：G642[文化科学—高等教育学] TN911[文化科学—教育学]