Sensing adhesive tape with high-temperature strain detecting function

Abstract

The invention belongs to the field of strain detection under high-temperature environment, and particularly relates to a sensing adhesive tape with a high-temperature strain detecting function. The sensing adhesive tape comprises an adhesive tape substrate formed by utilizing imported glass fiber cloth and teflon resin, wherein high-temperature-resistant polyimide optical fiber gratings are embedded in the teflon resin; an adhesive layer of the adhesive tape adopts an epoxy-polyimide adhesive; a protective film covers the adhesive layer; a transition region is provided with a high-temperature protective sleeve, and a high-temperature-resistant optical cable and an optical fiber matching head are arranged at the rear end of the protective sleeve. The sensing adhesive tape with the high-temperature strain detecting function, disclosed by the invention, is made by utilizing a combined structure of the high-temperature-resistant adhesive tape and the high-temperature-resistant optical fiber gratings. Through corresponding arrangement manner of the optical fiber gratings, an one-dimensional strain detecting function or a two-dimensional strain detecting function can be realized, so that the sensing adhesive tape is convenient to use, and can be in fully flexible fit with the surfaces of various high-temperature components; besides, the sensing adhesive tape can also be used in flammable and explosive environment, and can realize real-time detection, nondestructive detection, electromagnetic interference resistance, and 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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