A composite measurement device and method for interlayer temperature and carbonization degree of heat-proof layer

Abstract

The invention discloses a composite measuring device and method for interlayer temperature and carbonization degree of a heat-proof layer, wherein the method comprises: a mandrel assembly and a base with a hollow structure, and the mandrel assembly is installed on the base; the mandrel assembly includes: Mandrel, lower mandrel, primary winding protective layer, secondary winding protective layer, alloy wire and at least one thermocouple; upper mandrel and lower mandrel are connected; primary winding protective layer is wrapped around the upper mandrel and lower mandrel The surface; the secondary winding protective layer is wrapped on the outer surface of the primary winding protective layer; the alloy wire is arranged between the primary winding protective layer and the outer surfaces of the upper mandrel and the lower mandrel, and the secondary winding protective layer and the primary winding protection Between the layers; at least one thermocouple is embedded in the upper mandrel and the lower mandrel respectively. The invention overcomes the problem that the interlayer temperature and the degree of pyrolysis carbonization at the same position cannot be measured at the same time, and improves the accuracy of the acquired measurement data and the analyzability of the measurement data.

Description

technical field [0001] The technical field of measurement of the present invention relates in particular to a composite measurement device and method for interlayer temperature and carbonization degree of a heat-proof layer. Background technique [0002] When a near-space vehicle flies at hypersonic speed, aerodynamic heating will cause the temperature of the heat shield to rise and generate a temperature gradient. For the heat-resistant layer of resin-based materials that are widely used, long-term flight will cause serious ablation, pyrolysis and carbonization. The measurement of the interlayer temperature of the heat-resistant layer in the flight test is helpful to understand the flight thermal environment It can be used to judge the severity of the ablation; the measurement of the degree of pyrolytic carbonization of the heat-resistant layer is helpful to judge the state of the heat-resistant layer. Based on the measurement data of the interlayer temperature and the deg...

AI Technical Summary

Problems solved by technology

[0004] The technical solution of the present invention is to overcome the deficiencies of the prior art and provide a composite measuring device and method for interlayer temperature and carbonization degree of the heat-proof layer, aiming at overcoming the problem of not being able to measure the interlayer temperature and pyrolysis carbonization degree at the same position at the same time problem, improving the accuracy of the acquired measurement data, and, the analyzability of the measurement data

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