| 摘要 |
An optical-voltage sensor having a simple structure and being capable of being formed by directly laminating highly sensitive electro-optical elements is disclosed. The optical-voltage sensor includes a light source 1, a polarizer 2, a ¼ wavelength plate 3, an analyzer 5, and an O/E converting portion. Two electro-optical elements 4a, 4b are arranged adjacent to each other along a light transmitting direction between the ¼ wavelength plate 3 and analyzer 5. Transparent electrodes 7 are attached to front and back surfaces of each of the electro-optical elements 4a, 4b, and voltages having a magnitude equal to one another and a polarity opposite to one another are applied to the electro-optical elements 4a, 4b from a power supply 8a and a power supply 8b, respectively.
|
