In-line Sagnac interferometer-type optical voltage sensor for DC voltage measurement

Masao Takahashi; Kin'ichi Sasaki

doi:10.1117/12.2194270

28 September 2015 In-line Sagnac interferometer-type optical voltage sensor for DC voltage measurement

Masao Takahashi, Kin'ichi Sasaki

Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96345P (2015) https://doi.org/10.1117/12.2194270
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

Abstract

In-line Sagnac Interferometer-type optical voltage sensor for DC voltage measurement was proposed. The high input resistance of pockel’s cell contributes to the miniaturization of a sensor size and realizes highly precise measurement. The problem of DC voltage measurement was offset drift of signal processor. To solve the problem, in-line Sagnac interferometer which used in DC current sensor has been applied. Input-output characteristics and long term stability within 3 days has been confirmed. These results show that the stabilities of the optical voltage sensor are within ±0.5%.

Citation Download Citation

Masao Takahashi and Kin'ichi Sasaki "In-line Sagnac interferometer-type optical voltage sensor for DC voltage measurement", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96345P (28 September 2015); https://doi.org/10.1117/12.2194270

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