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Fiber bragg grating transformer winding vibration acceleration sensor and processing method thereof

A technology of transformer winding and vibration acceleration, applied in instruments, measuring devices, using wave/particle radiation, etc., can solve the problems of fiber grating chirp, low cross-sensitivity, low sensitivity, etc., to improve torsion resistance and sensitivity. , Increase the effect of directional anti-interference

Pending Publication Date: 2021-11-19
CHONGQING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, the current cantilever beam fiber grating vibration acceleration sensors generally have low sensitivity due to the influence of the fully viscous fiber grating packaging method; secondly, the adhesive packaging of this kind of sensor is easy to cause chirp phenomenon of the fiber grating; moreover , the cross-sensitivity of most cantilever beam structure sensors is not high

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  • Fiber bragg grating transformer winding vibration acceleration sensor and processing method thereof
  • Fiber bragg grating transformer winding vibration acceleration sensor and processing method thereof
  • Fiber bragg grating transformer winding vibration acceleration sensor and processing method thereof

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Embodiment Construction

[0032] The application will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, but not to limit the protection scope of the present application.

[0033] A fiber grating transformer winding vibration acceleration sensor of the present invention comprises a fiber grating, double cantilever beams and a housing;

[0034] The double cantilever beams are provided with double rectangular holes;

[0035] The two ends of the fiber grating are fixed on the double rectangular holes of the double cantilever beams, and the fiber grating is in a tensioned state at the centerline of the rectangular holes, and is packaged in the casing along with the double cantilever beams, and the optical fibers of the fiber grating are led out from the casing.

[0036] Under the action of an external signal with a stable vibration acceleration, the double cantilever bea...

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Abstract

The invention discloses a fiber bragg grating transformer winding vibration acceleration sensor and a processing method thereof, the sensor comprises a fiber bragg grating, a double-cantilever beam and a shell, and the double-cantilever beam is provided with double rectangular holes; two end points of the fiber bragg grating are fixed on the double rectangular holes of the double- cantilever beam, the fiber bragg grating is in a tightened state and located at the center line position of the rectangular holes, the fiber bragg grating is packaged in the shell along with the double-cantilever beam, and fibers of the fiber bragg grating are led out of the shell. The design of the double-cantilever beam increases directional interference resistance, and the two-point packaging design increases the sensitivity of the sensor and solves the problem of grating chirp.

Description

technical field [0001] The invention belongs to the technical field of transformer winding measurement, and relates to a fiber grating transformer winding vibration acceleration sensor and a processing method thereof. Background technique [0002] The change of transformer winding state will seriously endanger the safe operation of the transformer, and the safe and stable operation of the transformer is the key to ensure the reliable operation of the power grid. Changes in the state of the transformer windings will cause changes in the vibration signal, resulting in different accelerations. The sensor is the key to determine the vibration signal detection effect. Compared with the traditional vibration acceleration sensor, the fiber optic vibration acceleration sensor has the characteristics of anti-electromagnetic interference, electrical insulation, corrosion resistance, etc., and is suitable for application in the vibration detection of transformer windings. Among them, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H9/00
CPCG01H9/006
Inventor 李萌陈伟根刘帆张知先宋雨轩吴柯杰杨天荷王建新王品一宋睿敏王子懿
Owner CHONGQING UNIV
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