Using ultrasonic sensors to study sound attenuation of thermal insulation materials

Yiwei Chen; Xiaofang He; Fei Shen; Fei Qiu

doi:10.1117/12.2637605

13 May 2022 Using ultrasonic sensors to study sound attenuation of thermal insulation materials

Yiwei Chen, Xiaofang He, Fei Shen, Fei Qiu

Proceedings Volume 12248, Second International Conference on Sensors and Information Technology (ICSI 2022); 122480I (2022) https://doi.org/10.1117/12.2637605
Event: 2nd International Conference on Sensors and Information Technology (ICSI 2022), 2022, Nanjing, China

Abstract

When using ultrasonic to measure the dynamic burning rate of propellant during the test of solid rocket motors, it was necessary to grasp the ultrasonic attenuation characteristics of the insulation layer. This paper used the ultrasonic continuous pulse reflection method to obtain the multiple echo data of the insulation layer by setting the appropriate gain multiple, the echo intensity of the ultrasonic wave after passing through the insulation layer of different thickness was calculated and analyzed to obtain the ultrasonic attenuation characteristic curve of the insulation layer. This method can be used to calculate the maximum thickness of the thermal insulation layer tested by ultrasonic energy and improve the accuracy of ultrasonic measurement of the burning rate of solid rocket motors.

Citation Download Citation

Yiwei Chen, Xiaofang He, Fei Shen, and Fei Qiu "Using ultrasonic sensors to study sound attenuation of thermal insulation materials", Proc. SPIE 12248, Second International Conference on Sensors and Information Technology (ICSI 2022), 122480I (13 May 2022); https://doi.org/10.1117/12.2637605

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