fiber-optic current sensor

fiber-optic current sensor

[′fī·bər ¦äp·tik ′kə·rənt ‚sen·sər]
(engineering)
An instrument for measuring currents on high-voltage lines, in which the magnetic field associated with the current changes the phase of light traveling through an optical fiber, and the phase change is measured in an interferometer.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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