摘要
主要介绍了模拟锁相放大器和数字锁相放大器原理、特点、过渡和发展过程.通过数字锁相放大器的硬件的模块化结构、灵活的算法设计、软件的升级能力、应用的范围和特点以及性价比等,说明锁相放大器发展的前景和动力.
This review gives an introduction to the principle, character and development of the analog and digital lock-in amplifier. Especially, the digital lock-in amplifier has the following advantages： the model hardware, flexible arithmetic, updatable software, extensive application and low cost. So the development of the lock-in amplifier would have a bright future and powerful strength.
出处
《物理》
CAS
北大核心
2006年第10期879-884,共6页
Physics
关键词
模拟锁相放大器
数字锁相放大器
正交相关算法
数字锁相环
数字低通滤波
analog lock-in amplifier, digital lock-in amplifier, orthogonal vector arithmetic, digital phase locked loop, digital low pass filter
