Lock-in Amplifiers: Principles and ApplicationsThis book deals with the principles of phase-sensitive detection and with the specification and handling characteristics of modern lock-in amplifiers. The material is presented at systems level throughout and covers many practical aspects of signal recovery in research applications. |
Common terms and phrases
achieved amplitude applied reference broadband Chapter characteristics circuit constant conventional lock-in amplifier detection system dynamic range dynamic reserve effect example factor fluctuation frequency range fSYN full-scale sensitivity fundamental-only response gain ground loop harmonic responses heterodyne lock-in amplifier heterodyne system in-phase input interference components intermediate frequency linearity lock-in systems locking signal loop filter low-pass filter magnitude maximum mean-square measurement mixer modulation noise bandwidth noise figure obtained operation oscillator output stability output voltage overload capability phase detector phase error phase noise phase-locked loop phase-sensitive detector phase-shift practice Q-factor quadrature quency reference channel reference frequency relative resistor result Section sensitive detector shown in Fig signal and noise signal and reference signal channel signal frequency signal recovery signal-to-noise ratio slew rate source resistance specification spectrum spurious responses squarewave suppression switching waveform synchronous detector synchronous signal transmission windows tuned filter two-phase lock-in amplifier usually vector computer voltage waveform zero