Lock-in amplifier

Known as: Phase-sensitive detector, Phase sensitive detector, Lock in amplifier 
A lock-in amplifier is a type of amplifier that can extract a signal with a known carrier wave from an extremely noisy environment. Depending on the… (More)
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Papers overview

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2017
2017
Our work that is described here advances a topology for an analog integrated lock-in amplifier (LIA) for optical sensors. We… (More)
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2014
2014
Gaussian fluctuations (or Gaussian noise) appear in almost all measurements in physics. Here, a concise and self-contained… (More)
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2012
2012
Lock-in amplifiers are used to recover information from a noisy signal. There is a trade-off between the noise reduction obtained… (More)
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2012
2012
This paper introduces a custom digital lock-in amplifier for detecting the imbalance signal of a precision audio frequency bridge… (More)
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2010
2010
We describe the design and development of an optoelectronic lock-in amplifier (LIA) for optical sensing and spectroscopy… (More)
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2009
2009
This paper presents a fully integrated lock-in amplifier intended for nanowire gas sensing. The nanowire will change its… (More)
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2008
2008
A high-frequency digital lock-in amplifier (LIA) that uses a random-sampling scheme is proposed and tested experimentally in this… (More)
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2003
2003
We describe a basic experiment for the undergraduate laboratory that demonstrates aspects of both the science and the art of… (More)
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1999
1999
An integrated lock-in amplifier for sensor applications is demonstrated. The circuit has been fabricated in a 0.7µm n-well CMOS… (More)
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1992
1992
its most basic form a lock-in amplifier is an instrument with dual capability. It can recover signals in the presence of an… (More)
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