A differential lever structure fiber bragg grating liquid level sensor and using method thereof

Abstract

The invention relates to an optical fiber Bragg optical grating liquid level sensor of a differential type lever structure and a using method of the optical fiber Bragg optical grating liquid level sensor of the differential type lever structure, and belongs to the technical field of photoelectron measurement. The optical fiber Bragg optical grating liquid level sensor of the differential type lever structure comprises a hollow buoyancy plastic rod, a position fixing ring sleeve, a lever, a lever supporting rod, a fixed base, a pressure transmission rod, optical fiber Bragg optical gratings, a cantilever with equal strength, a guide-out optical fiber, a cantilever supporting rod, a force transmission spring and a container wall, wherein the fixed base is placed at the bottom of a container; the position fixing ring sleeve, the lever supporting rod and the cantilever supporting rod are welded to the fixed base; the hollow buoyancy plastic rod is placed in the position fixing ring sleeve; the top of the hollow buoyancy plastic rod is connected with the force transmission spring; the other end of the force transmission spring is connected with the left end of the lever; the lever supporting rod is connected with the fulcrum of the lever; the right portion of the fulcrum of the lever is connected with the cantilever with equal strength through the pressure transmission rod; the optical fiber Bragg optical gratings adhere to the upper wall and the lower wall of the cantilever with equal strength. By means of the optical fiber Bragg optical grating liquid level sensor of the differential type lever structure, detected liquid level is monitored in a real-time and online mode.

Description

technical field [0001] The invention relates to a differential lever structure optical fiber Bragg grating liquid level sensor and a using method thereof, belonging to the technical field of optoelectronic measurement. Background technique [0002] The oil storage tank is an important equipment for storing oil products. The accurate measurement of the liquid level of the oil storage tank has a great influence on the inventory management and economic operation of the production plant. However, the liquid level measurement of many reaction tanks and large oil storage tanks in China still adopts the method of manual detection, which is easy to cause safety accidents and cannot provide accurate basis for production operations and management decisions. Many electrical measuring sensors in the past are likely to cause static electricity in the measurement system, and even ionize under a strong electric field, causing discharge to form an electric spark, and are easily affected by ...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a differential lever structure optical fiber Bragg grating liquid level sensor and its use method, which are used to solve the problem of real-time online detection of the liquid level of the oil storage tank

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