Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Using radiant energy
Patent
1997-01-21
1998-12-01
Font, Frank G.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Using radiant energy
324117R, G01R 3100
Patent
active
058444106
ABSTRACT:
A device for optically measuring a physical quantity in power equipment includes an optical fiber associated with the power equipment, an optical part for transmitting/receiving light to/from the optical fiber, calculation unit for calculating a physical quantity in the power equipment by detecting the polarized state of light polarized by the power equipment on the basis of the output from the optical part, a housing box for housing the optical part, and a fixing member to which the optical part is mounted and which is fixed to the housing box by laser welding.
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IEEE Transactions on Power Delivery, vol. 5, No. 2, pp. 884-891, Apr. 1990, T. Sawa, et al., "Development of Optical Instrument Transformers".
Ikuta Sakae
Matsumoto Keiko
Takahashi Masao
Terai Kiyohisa
Font Frank G.
Kabushiki Kaisha Toshiba
Smith Zandra V.
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