Electric field sensor

G - Physics – 01 – R

Patent

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Details

G01R 29/08 (2006.01) G01R 15/22 (2006.01) G01R 15/24 (2006.01)

Patent

CA 2144080

By using an electric field sensor comprising a sensor head for producing a transmitted light wave having an intensity which varies in dependence upon an intensity of an electric field applied thereto, an optical fiber for delivering a light wave from a light source to the sensor head to make the light wave be incident thereto, an optical fiber for delivering the transmitted light wave of the sensor head to a photoelectric transducer, and a measuring unit for measurement and display of an electric signal from the photoelectric transducer, an electromagnetic noise or an electromagnetic leaking wave is detected as variation of the light intensity by locating the sensor head in the vicinity of a source of the electromagnetic noise or the leaking wave without contacting the source.

Capteur de champs électriques comprenant une tête de détection (100) traversée par la lumière transmise, dont elle fait varier l'intensité en fonction de celle du champ électrique appliqué, une fibre optique (8) qui conduit la lumière d'une source lumineuse (1) à la tête (100), une fibre optique (9) qui conduit la lumière transmise à travers la tête (100) à un convertisseur photoélectrique (10) et un instrument de mesure (11) qui mesure et affiche les signaux électriques en provenance du convertisseur (10). Ce capteur détecte un bruit ou une dispersion électromagnétique grâce aux variations d'intensité de la lumière, sans que la tête (100) entre en contact avec la source du bruit ou de la dispersion électromagnétique, par simple positionnement de la tête (10) à proximité de cette source.

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