论文部分内容阅读
现时代,科学技术发展迅猛,从噪声中提取微弱的有用信号的技术日益完善,锁定放大器的出现有效地实现了检测微弱信号的需求。本文给出了以相敏检波器为核心,用于完成强干扰背景下u V级小信号的有效提取的锁定放大器的设计。
Nowadays, with the rapid development of science and technology, the technology of extracting weak and useful signals from noise has been increasingly improved. The appearance of lock-in amplifiers has effectively realized the need of detecting weak signals. In this paper, the design of a lock-in amplifier with a phase-sensitive detector as the core for the efficient extraction of uV-class small signals in the context of strong interference is presented.