The Review of Laser Engineering
Online ISSN : 1349-6603
Print ISSN : 0387-0200
ISSN-L : 0387-0200
Laser Lecture
Lock-in Amplifier and Signal Amplifier
Masanori ANDO
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Keywords: Lock-in amplifier, Phase Sensitive Detector, Current amplifier, Charge amplifier
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2012 Volume 40 Issue 6 Pages 448-

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Abstract
Lock-in amplifier is a useful instrument for recovering small signals buried in noise. This paper describes the principle and an application example of the lock-in amplifier. In addition, it offers some advice on the selection and usage of signal amplifier.
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© 2012 by The Laser Society of Japan
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