Lock-in amplifiers

This book was written for all users of lock-in amplifier equipment and for those with an interest in the practical aspects of signal recovery and measurement using synchronous detection. Among the topics included are the principles of phase-sensitive detection, applications for two-phase lock-in amplifiers, the problems of phase-locking to very noisy signals, a review of system configurations for heterodyne and PWM lock-in amplifiers and the use of lock-in amplifiers in computer-controlled measurements. The numerous appendices cover selected topics in signal and noise theory, the principles…