Lock-in Amplifiers | Photonics Buyers' Guide

Photonics Buyers' Guide > Lock-in Amplifiers

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Lock-in Amplifiers A lock-in amplifier is a form of synchronous detector having a balanced amplifier in which the signal is applied to the grids of two tubes as the control signal is applied to their plates or another grid. The difference in output currents is then measured.

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Boston Electronics Corp. - Brookline, MASupplies quantum cascade tunable IR lasers (3.3 to 17+ microns); UV/IR detectors; choppers, shutters, lock-in amplifiers; single-photon counting electronics and systems for single molecule detection, fluorescence lifetime imaging/spectroscopy, diffuse optical tomography and laser radar. Also photon...
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TERMS
amplifier A device that enlarges and strengthens a signal's output without significantly distorting its original waveshape. There are amplifiers for acoustical, optical and electronic signals.
lock-in amplifier A form of synchronous detector having a balanced amplifier in which the signal is applied to the grids of two tubes as the control signal is applied to their plates or another grid. The difference in output currents is then measured.

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