Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Using radiant energy
Patent
1989-02-21
1991-06-04
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Using radiant energy
324106, 374161, G01R 522, G01K 1112
Patent
active
050217313
ABSTRACT:
A thermo-optical current sensor includes a resistive or semiconducting sensing element that has an optical property that varies as a function of temperature. Current to be measured flows through the sensing element thereby causing heating that is detected by a change in the optical property. The sensing element may be either a resistive or semiconducting material having a temperature dependent optical property or a resistive or semiconducting material that is in thermal contact with an optical temperature sensor. The thermo-optical current sensor may be used as a field meter to measure the intensity of an electromagnetic field or as a current meter to measure the current flowing through a power line.
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Lawrence Dale M.
Saaski Elric W.
Karlsen Ernest F.
Metricor, Inc.
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