Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Using radiant energy
Patent
1988-11-10
1990-07-03
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Using radiant energy
25022714, 324 72, 324244, G01R 1900
Patent
active
049394479
ABSTRACT:
A fiber-optic voltage sensor comprises at least one fiber-optic, piezoelectric sensor element (2a, 2b, 2c, 2d), which measures a predeterminable directional component of a local electric field. One or more than one piezoelectric sensor elements (2a, 2b, 2c, 2d) are arranged serially between two ends of the fiber-optic voltage sensor, each piezoelectric sensor element (2a, 2b, 2c, 2d) respectively measuring a directional component of a local electric field, which component lies parallel to a path element assigned to it, the path elements as a whole forming an open polygon connecting the two ends of the fiber-optic voltage sensor. Each sensor element (2a, 2b, 2c, 2d) has a gain which is proportional to a length of the path element assigned to it. In a preferred embodiment, the piezoelectric sensor elements (2a, 2b, 2c, 2d) are connected by spacers (3a, 3b, 3c).
Preferably, the piezoelectric sensor elements (2a, 2b, 2c, 2d) are disc-shaped and the spacer (3a, 3b, 3c) are cylindrical and form as a whole a cylindrical body.
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Bohnert Klaus
Kirchhofer Rolf
BBC Brown Boveri AG
Burns W.
Eisenzopf Reinhard J.
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