This paper introduces the principles of contact ultrasonic guided wave temperature measurement tech-nology,ultrasonic internal temperature gradient temperature measurement technology,and cross-beam ultrasonic tem-perature measurement technology.It describes the research status of ultrasonic temperature measurement technology,and the application cases and test results of ultrasonic temperature measurement technology in engine combustion cham-ber temperature measurement.This review analyzes the technical characteristics and potential problems of various ultra-sonic temperature measurement techniques.It is pointed out that the study of high temperature oxidation resistant wave-guide materials is the top priority in the development of ultrasonic guided wave temperature measurement technology.It is proposed that the temperature measurement range can be extended and the temperature measurement accuracy can be im-proved by developing new materials,new processes and new equipment,and constantly iterating the feature signal recog-nition algorithm model.This provides reference for further development of acoustic temperature measurement technology.
关键词
超高温/极端环境/超声测温/温度梯度
Key words
ultra-high temperature/extreme environments/ultrasonic temperature measurement/temperature gradient
维普
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