Fiber grating temperature sensor for electrolytic bath shell

Abstract

The invention discloses a fiber grating temperature sensor for an electrolytic bath shell, which realizes monitoring of electrolytic bath shell temperature by converting change of temperature-sensitive area temperature into change of center wavelength of a fiber grating. The fiber grating temperature sensor has intrinsic safety and resists electromagnetic interference, the temperature measuring range is between 40 DEG C below zero and 400 DEG C, and the temperature resolution is 2 DEG C. The fiber grating temperature sensor structurally comprises a fiber bracket, a sleeve, the fiber grating, atemperature reduction head, an armored cable, a hollow screw and a temperature-sensitive area, wherein the fiber bracket and the sleeve are matched and arranged, one end of the fiber bracket is connected with the temperature reduction head which is provided with the hollow screw, and the armored cable is arranged in the hollow screw; and the middle part of the sleeve is the temperature-sensitivearea, and the fiber grating is positioned in the fiber bracket of the temperature-sensitive area.

Description

technical field [0001] The invention relates to an optical fiber grating temperature sensor for an electrolytic tank shell, specifically a high-temperature sensor used for temperature measurement of an electrolytic tank shell, etc., belonging to the field of optical fiber grating temperature sensing and new sensors. Background technique [0002] The smelting industry is a large energy consumer and one of the key objects of national macro-control in recent years. Therefore, it is of great significance to do a good job in energy conservation and emission reduction in this industry. Infrared temperature detection technology is currently the most commonly used technical method, but it needs to select some representative points for measurement at intervals, resulting in discontinuous time, limited points in space, and is not conducive to data storage and analysis. In addition, the workload is also very large, the measurement cycle is long, the surrounding strong magnetic field wi...

AI Technical Summary

Problems solved by technology

Infrared temperature detection technology is the most commonly used technical method at present, but it needs to select some representative points for measurement at intervals, resulting in discontinuous time, limited number of points in space, which is not conducive to data storage and analysis

In addition, the workload is also very large, the measurement cycle is long, the surrounding strong magnetic field will affect its temperature measurement accuracy and life, and the labor intensity of workers is high, and the temperature measurement error caused by human factors is large. The biggest defect is that real-time temperature measurement cannot be realized. It is impossible to detect security risks in time

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