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High-Accuracy Dry-Bulb Temperature Sensing with Short-Time Fourier Transform (STFT) Using PSON pMUTs | IEEE Conference Publication | IEEE Xplore

High-Accuracy Dry-Bulb Temperature Sensing with Short-Time Fourier Transform (STFT) Using PSON pMUTs


Abstract:

This paper presents the methodology for estimating the temperature in moist air, known as dry-bulb temperature, using Piezoelectric over Silicon-On-Nothing (PSON) ScAlN p...Show More

Abstract:

This paper presents the methodology for estimating the temperature in moist air, known as dry-bulb temperature, using Piezoelectric over Silicon-On-Nothing (PSON) ScAlN pMUTs based on Short-Time Fourier Transform (STFT). A digital signal processing technique is proposed for the Time-of-Flight (ToF) estimation based on STFT with the estimated ToF value used to compute the ultrasonic speed of sound. Experimental results presented here report a mean accuracy of 95% in the estimated dry-bulb temperature. This is a very positive outcome towards the usage of the proposed signal processing algorithm along with standard PSON pMUTs for sensing temperature in a moist environment.
Published in: 2023 IEEE SENSORS
Date of Conference: 29 October 2023 - 01 November 2023
Date Added to IEEE Xplore: 28 November 2023
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ISSN Information:

Conference Location: Vienna, Austria

References

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