System and method for measuring tail flame temperature field of solid engine ground test

Abstract

The invention proposes a tail flame temperature field measurement system and method for a solid engine ground test. The measurement system includes an infrared thermal image test system, a multi-spectral measurement system, a colorimetric measurement system, a thermocouple measurement system, a calibration system and a data analysis and processing system. The present invention adopts the combination of contact method and non-contact method, utilizes infrared thermal imaging technology, multi-spectral method, colorimetric temperature measurement method and thermocouple method, "point" temperature and "surface" temperature combined measurement, through real-time calibration measurement, and Carry out calibration correction to obtain the plume temperature field distribution. The invention fully describes the shape and structure of the exhaust flame temperature field, and can obtain the temperature field and structural size of the engine exhaust flame which cannot be obtained by traditional measurement means.

Description

technical field [0001] The invention relates to the technical field of tail flame temperature, in particular to a measurement system and method for the tail flame temperature field of a solid engine ground test. Background technique [0002] In the development of weapon systems, the engine exhaust is an important aspect to characterize the performance of the engine. On the one hand, the study of the exhaust can obtain the combustion efficiency and working state of the solid propellant; it can also obtain the impact on the weapon launch platform, which is due to Depending on the launch conditions of the missile, the gas jet may have many adverse effects on the launch environment on the launch facility and surrounding equipment, and may affect the launch accuracy. [0003] Gas temperature is one of the basic parameters of the plume of solid rocket motors, and understanding its temperature distribution is of great value for studying the combustion of solid propellants and the c...

AI Technical Summary

Problems solved by technology

[0008] To sum up, the current flame temperature measurement method has the following defects: it is mainly used in the laboratory environment, the optical test system and process are complicated, only single point or limited point measurement can be realized, the test accuracy is difficult to guarantee, and the entire temperature field cannot be obtained. data, poor applicability in engine ground tests, etc.

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