Optical voltage sensor

G - Physics – 01 – R

Patent

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G01R 15/24 (2006.01)

Patent

CA 2724859

A polarizing optical system (15, 16) is disposed perpendicular to an optical axis of incoming light from a light source (12), having the optical axis (12) as a center axis, and configured for polarization of incoming light to a prescribed reference state, an electro-optical device (17) is disposed perpendicular to the optical axis, having the optical axis as a center axis, and adapted, as a voltage to be measured is imposed thereon, to respond to the imposed voltage by polarizing light polarized by the polarizing optical system (15, 16), and an analyzer (18) is disposed perpendicular to the optical axis, having the optical axis as a center axis, and adapted for detection of light polarized by the electro-optical device (17), to irradiate a detector (21) configured for conversion of incoming light into an electric signal.

L'invention a trait à un capteur optique de tension pourvu de systèmes optiques de polarisation (15, 16), qui sont disposés en position verticale par rapport à un axe optique de la lumière provenant d'une source lumineuse (12), l'axe optique étant pris comme axe central, et qui polarisent la lumière entrante dans un état de référence prédéterminé ; un élément électro-optique (17), qui est disposé en position verticale par rapport à l'axe optique pris comme axe central et qui polarise la lumière polarisée par les systèmes optiques de polarisation (15, 16), correspondant à un potentiel appliqué lorsque le potentiel à mesurer est appliqué ; et un analyseur (18) qui est disposé en position verticale par rapport à l'axe optique, pris comme axe central, et qui détecte la lumière polarisée par l'élément électro-optique (17), et irradie un détecteur (21), lequel détecteur convertit les signaux optiques entrants en signaux électriques.

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