Signal to noise enhancement of lock-in amplifiers
- 1 February 1980
- journal article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 51 (2) , 251-252
- https://doi.org/10.1063/1.1136167
Abstract
A lock-in amplifier can be considered to be a special case of the more general box-car averager. Expressions for the output noise voltage of lock-in amplifiers are deduced from the corresponding results derived earlier for box-car averagers. Deviations from the simple (4 RC)1/2 law are shown to exist in the case of nonwhite noise.Keywords
This publication has 3 references indexed in Scilit:
- Analysis of signal-to-noise enhancement of box-car averagersPramana, 1978
- Sensitivity Enhancement in Magnetic Resonance. I. Analysis of the Method of Time AveragingReview of Scientific Instruments, 1965
- ``Boxcar'' Integrator with Long Holding TimesReview of Scientific Instruments, 1961