frequency-modulation detector

frequency-modulation detector

[′frē·kwən·sē ‚mäj·ə‚lā·shən di′tek·tər]

(electronics)

A device, such as a Foster-Seely discriminator, for the detection or demodulation of a frequency-modulated wave.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

Frequency-modulation detector

A device for the detection or demodulation of a frequency-modulated (FM) wave. FM detectors operate in several ways. In one class of detector, known as a discriminator, the frequency modulation is first converted to amplitude modulation, which is then detected by an amplitude-modulation detector. Another type of FM detector employs a phased-locked oscillator to recover the modulation. A still different type converts the frequency modulation to plus-rate modulation, which can be converted to the desired signal by use of an integrating circuit. See Amplitude-modulation detector

McGraw-Hill Concise Encyclopedia of Engineering. © 2002 by The McGraw-Hill Companies, Inc.