Sagnac effect test device of all fiber optical transformer

Abstract

The invention relates to a Sagnac effect test device of an all fiber optical transformer. The Sagnac effect test device comprises a vertical supporting part, a shaft plate, a bearing, a stop pin, a signal acquiring module and an upper computer, wherein the shaft plate is fixedly arranged on the vertical supporting part through the bearing; the shaft plate plane is vertically arranged and perpendicular to the bearing; an optical module of a to-be-tested all fiber optical transformer and a sensitive optical fiber ring are fixedly mounted on the shaft plate; the stop pin supports the shaft plate to keep the horizontal position immobile, and after the stop pin is removed, the shaft plate with the optical module and the sensitive optical fiber ring freely rotates in the shaft plate plane; the output of the optical module is connected to the signal acquisition module; the signal acquisition module is connected with the upper computer. The test device can be used for accurately and conveniently testing interferences of the Sagnac effect to the performances of the all fiber optical transformer, and has the advantages of being small in floor area, simple in structure, flexible to use, and the like.

Description

technical field [0001] The invention relates to the technical field of power equipment testing, in particular to a device for testing the Sagnac effect of an all-fiber current transformer. Background technique [0002] The Sagnac effect (Sagnac effect) was discovered by Sagnac in 1913. It refers to decomposing a beam of light emitted by the same light source into two beams, and letting them circulate in opposite directions in the same loop for a week. meet, and then produce interference on the screen, when there is a rotational angular velocity in the loop plane, the interference fringes on the screen will move, which is the Sagnac effect. The Sagnac effect has been widely used at present, and the fiber optic gyroscope developed by the Sagnac effect has been successfully used in aviation, aerospace and other fields. [0003] For all-fiber-optic current transformer products, when the closed loop area in the optical path is not 0, there will be Sagnac effect. When the vibrati...

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Problems solved by technology

[0006] The present invention aims at the problems of high power consumption, complicated installation, high price and large occupied area of ​​existing all-fiber current transformer Sagnac effect test equipment, and provides a full-fiber optic current transforme

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