Record Details

A lock-in amplifier for detecting weak signals buried in noise

ScholarsArchive at Oregon State University

Field Value
Title A lock-in amplifier for detecting weak signals buried in noise
Names Clinton, Ted Warner (creator)
Amort, Donald L. (advisor)
Date Issued 1969-10-31 (iso8601)
Note Graduation date: 1970
Abstract It is often necessary in communication systems to detect very
small signals that are buried in noise. One device used to accomplish
this is a lock-in amplifier. Initially the theory of operation is considered.
Then the circuit design of a low cost lock-in amplifier is
given. The amplifier, employing linear integrated circuits, has a
frequency range from 200 to 30 KHz and can detect a 10 nanovolt
signal buried up to 60 dB below the noise level. Experimental results
are given for a variety of input signal conditions.
Genre Thesis/Dissertation
Topic Amplifiers (Electronics)
Identifier http://hdl.handle.net/1957/46038

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