heterodyne analyzer
heterodyne analyzer
[′hed·ə·rə‚dīn ′an·ə‚liz·ər] (engineering acoustics)
A type of constant-bandwidth analyzer in which the electric signal from a microphone beats with the signal from an oscillator, and one of the side bands produced by this modulation is then passed through a fixed filter and detected.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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