Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1992-05-01
1993-03-23
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
324 96, H01J 516
Patent
active
051966956
ABSTRACT:
In a fiber-optic sensor for alternating electric fields or voltages, the interference in a bimodal fiber (3) is measured passively. To this end, the mutually phase-shifted near-field and remote-field signals are separated by optical means (15) at the exit end of the bimodal fiber (3), and passed to appropriate detectors (17a, b, c), and the electrical signals created are evaluated by electronic means (18).
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Bohnert Klaus
Fauth Mathias
Asea Brown Boveri Ltd.
Le Que T.
Nelms David C.
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