The phase - locked amplifier is realized through labview 此相关器用labview语言实现。
Sampling frequency and time constant of phase - locked amplifier were increased by using microcomputer 采用计算机采样,提高了采样频率和锁相放大器的时间常数。
Last , because the slight optical signal of optical ct usually immerses in the noise signals , a phase - locked amplifier using correlation function is proposed in this paper . the phase - locked amplifier can acquire the slight optical signal immersing in the noise signals 此外,由于光学ct微弱的光信号往往会被外来的干扰光淹没,所以本文还研究了一种基于相关函数的相关器,用来提取淹没于噪声中的被调制的微弱光信号。