The lock-in amplifier circuit comprises a photoelectric detector used for detecting the terahertz pulse signals, a pre-amplification module, a phase shift module and a phase-sensitive detection module. The lock-in amplifier circuit is characterized in that: signals to be detected which are acquired...
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LockInAmplifier2010PPT课件 DesigningaLock-inAmplifierwithAnalogtoDigitalConversion MuirMorrisonRachelMillerMikeGallaspy - 1 Outline •Whatisalock-in?Whyisituseful?•Design&implementationoftheanalog circuit•Digitalelectronics,verybriefly•Analogtodigitalconversion•Concluding,andfuturework - 2 Motivation&...
Lock-In Amplifier Uses Single ICby David R. Williams and William T. Lum Download PDF The circuit, which combines a synchronous filter with a phase detector, will detect a modulated signal buried in noise. The dc output is proportional to the modulated signal, while the underlying component of...
lockinamplifier2010ppt课件 系统标签: analogsigsignallockltcref DesigningaLock-inAmplifierwithAnalogtoDigitalConversionMuirMorrisonRachelMillerMikeGallaspyOutlineWhatisalock-in?Whyisituseful?Design&implementationoftheanalogcircuitDigitalelectronics,verybrieflyAnalogtodigitalconversionConcluding,andfutureworkMotivation&Lock...
A lock-in amplifier includes a phase-sensitive detector (7) having a signal input and a reference input. The output signal from detector (7) is compensated for dc offset errors which are dependent on the frequency of the reference input ad on ambient temperature changes by having a correction...
Single-Phase-Analog-Lock-in-Amplifier网络单相模拟锁相放大器网络释义 1. 单相模拟锁相放大器 什么意思... ... Single Phase Analog Lock-in Amplifier 单相模拟锁相放大器 In Analog Circuit Design 在模拟电路设计 ... dict.youdao.com|基于1 个网页©...
锁相放大器(Lock-in Amplifier, 简写为LIA)就是检测淹没在噪声中的微弱信号的仪器。它可用于测量微弱交流信号的幅度和位相, 有较强的抑制干扰和噪声的能力, 有极高的灵敏度,在光谱学和环境学的微弱信号探测与采集中有着广泛的应用前景。 上传者:chujianqiling时间:2014-07-18...
Lock-in Amplifier Module(锁相放大器模块)- 1 -Becker & Hickl GmbH LIM100.DOC Nahmitzer Damm 30 12277 Berlin Tel.030 / 787 56 32 Fax.030 / 787 57 34 email: info@becker-hickl.de http://www.becker-hickl.de Lock-in Amplifier Module LIM-100• Wide frequency range: 100 Hz to >1 ...
synchronized at the same frequency or at an an integer multiple of it and used as a reference signal of a 10 MHz bandwidth double lock-in amplifier... S Petitgrand,R Yahiaoui,K Danaie,... - 《Optics & Lasers in Engineering》 被引量: 214发表: 2001年 Cognitive Modelling of Pilot Errors...