Device for packaging optical fiber grating temperature sensing probe on electric energy meter connecting terminal and integration temperature calibration method thereof

Abstract

The invention provides a device for packaging an optical fiber grating temperature sensing probe on an electric energy meter connecting terminal and an integration temperature calibration method thereof. The main body of the device is a clamping slot shaped like a Chinese character 'hui' which is made of heat conducting material, and one edge of the clamping slot is communicated with an embedded cylindrical hole slot which is suitable for inserting the optical fiber grating temperature sensing probe. The shape and the size of the clamping slot shaped like the Chinese character 'hui' are matched with the electric energy meter connecting terminal, a strip shape opening area is designed in the inner side of the clamping slot shaped like the Chinese character 'hui', and the maximum direct contact of the optical fiber grating temperature sensing probe and the electric energy meter connecting terminal is guaranteed. The whole device is simple in structure, capable of perceiving contact head actual temperature information timely and convenient to install. In addition, the integration temperature calibration method corresponding to the packging comprises the steps that point-to-point temperature calibrating is conducted on the whole by the adoption of a thermostatic water bath device, and the correspondence relationship of the optical fiber grating center wavelength shift of the optical fiber grating temperature sensing probe integrated packging based on the clamping slot structure shaped like the Chinese character 'hui' at different temperatures and temperature changing of the tested connecting terminal is acquired.

Description

[0001] technical field [0002] The invention belongs to the field of temperature monitoring of electric energy meters, and in particular relates to a structure for packaging an optical fiber grating temperature-sensing probe on an electric energy meter terminal and a supporting integrated temperature calibration method. Background technique [0003] In the field of electric energy meter equipment, the terminal block of electric energy meter is the weak link that is prone to failure. After long-term use, due to poor contact at these parts, improper insertion eccentricity and other reasons, the contact resistance is relatively large. In the case of high current, the heating here is serious, and the result is that the temperature of the joint is abnormal. As a result, the oxidation of the contact surface is aggravated, and the contact resistance is further increased, forming a vicious circle, thereby damaging the terminals of the electric energy meter. It is difficult for in...

AI Technical Summary

Problems solved by technology

[0004] Conventional electric energy meter temperature measurement equipment is a non-contact temperature measurement instrument, which is easily affected by electromagnetic fields and external environmental temperature factors, resulting in inaccurate temperature measurement and unstable working conditions.

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