摘要
根据锁定放大器的工作原理 ,提出了利用锁定放大器检测微弱信号的实验方法 ,并指出了影响测量的几个参数。
According to the operating principle of the lock-in amplifier the experimental method of measuring the weak signals using the lock-in amplifier is presented.A few parameters influencing the testing are also presented.
出处
《大学物理实验》
2000年第3期12-14,共3页
Physical Experiment of College
关键词
锁定放大
实验方法
参数
微弱信号
lock-in amplifier
weak signals
calibration
testing
