A sensor tape with high temperature strain detection function

Abstract

The invention belongs to the field of high-temperature environment strain detection, and in particular relates to a sensing adhesive tape with a high-temperature strain detection function. Including the tape substrate formed by imported glass fiber cloth and Teflon resin. Polyimide high temperature resistant fiber grating is embedded in the Teflon resin. The adhesive layer of the tape is epoxy-polyimide adhesive. Covered with a layer of protective film, there is a high temperature protective sleeve in the transition area, and the rear end is a high temperature resistant optical cable and optical fiber matching head. The invention utilizes the combination structure of high temperature resistant adhesive tape and high temperature resistant optical fiber grating to make a sensing adhesive tape with high temperature strain detection function, and can realize one-dimensional or two-dimensional strain detection function through the corresponding layout mode of optical fiber grating , this kind of sensing tape is easy to use, can be completely flexibly attached to the surface of various high-temperature components, and can also be used in flammable and explosive environments to achieve real-time detection, non-destructive testing, anti-electromagnetic interference, distributed and quasi-distributed measurement .

Description

technical field [0001] The invention belongs to the field of high-temperature environment strain detection, and in particular relates to a sensing adhesive tape with a high-temperature strain detection function. Background technique [0002] In modern society, many places need to use strain sensors to measure the surface strain of material structures, so as to detect and monitor material structures in real time, and prevent material structure safety accidents, such as: high-temperature pressure vessel leakage and pipe burst accidents. These accidents are caused by The external effect of the high temperature or fatigue failure of the vessel wall is the strain change on the vessel surface, which is a nonlinear process. If real-time strain monitoring data of the high temperature pressure vessel can be provided, leakage and tube burst accidents can be effectively avoided. [0003] At present, strain monitoring is usually realized by using resistance strain gauges, which are wide...

AI Technical Summary

Problems solved by technology

[0007]The purpose of this invention is to solve the problem that traditional strain sensors are susceptible to electromagnetic interference and cannot be used in flammable and explosive environments, and at the same time avoid the traditional strain sensor and the component to be measured The problem of damage to the component under test caused by welding and punching fixation methods

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