Study on the acoustic wave flying time measurement method based on the second related technology

Feng Tian,Changhui Zhang,Song Liu,TingTing Bian,Weijun Zhang

ICEMI 2009 - Proceedings of 9th International Conference on Electronic Measurement and Instruments（2009）

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摘要

Accurate measurement of the acoustic wave flying time in furnace is the key of acoustic measurement technology of furnace temperature distribution. This paper proposes the acoustic wave flying time measurement method based on the second related technologies. First, the received signal is dealt with autocorrelation process, and then it is dealt by cross-correlation with reference signal, which realizes the reconstruction of useful signal in the noise signal. Finally, time-delay estimation is done based on the reconstruction signal. The simulation result shows that compared with generalized cross-correlation method, this method shows stronger anti-noise capability and higher measurement accuracy. ©2009 IEEE.

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关键词

acoustic thermometry,acoustic time of flight,cross correlation method,second related technology,signal reconstruction,time measurement,noise signal,acoustics,acoustic waves,temperature measurement,signal to noise ratio,time of flight,cross correlation,noise measurement

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