A high accuracy ultrasonic system for measurement of air temperature

F. J. Aldawi; A. P. Longstaff; S. Fletcher; C. Pislaru; A. Myers; J. Briggs

A high accuracy ultrasonic system for measurement of air temperature

F. J. Aldawi, A. P. Longstaff, S. Fletcher, C. Pislaru, A. Myers, J. Briggs

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

This paper introduces an ultrasonic measurement system to determine the mean temperature of the air between source and receiver. The system uses measurement of changes in the local speed of sound in the air to determine the temperature of the air. The changes in the speed of sound are determined by multi-frequency continuous wave frequency modulation (MFCWFM) techniques. This paper present a simple but efficient algorithm based upon phase shifts generated by three ultrasonic waves of different frequencies. To confirm concept feasibility, two low cost 25 kHz ultrasonic transducers were positioned face to face and used to transmit and receive ultrasound. Frequency modulation of the 25 KHz carrier frequency was used to transmit three frequencies; 25kHz, 1 kHz and 100 Hz. The proposed method can give a more accurate measurement of temperature than the time of flight (TOF) and phase shift (PS) methods. The range accuracy was found to be 0.07°C. The main advantages of this system are high resolution and ease of implementation.

Original language	English
Title of host publication	Proceedings of the 9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009
Editors	Hendrik Van Brussel, Theresa Burke, H. Spaan, E. Brinksmeier, Theresa Burke, Theresa Burke
Publisher	euspen
Pages	134-137
Number of pages	4
Volume	2
ISBN (Electronic)	9780955308260
Publication status	Published - 2009
Event	9th International Conference of the European Society for Precision Engineering and Nanotechnology - San Sebastian, Spain Duration: 2 Jun 2009 → 5 Jun 2009 Conference number: 9

Conference

Conference	9th International Conference of the European Society for Precision Engineering and Nanotechnology
Abbreviated title	EUSPEN 2009
Country/Territory	Spain
City	San Sebastian
Period	2/06/09 → 5/06/09

Cite this

Aldawi, F. J., Longstaff, A. P., Fletcher, S., Pislaru, C., Myers, A., & Briggs, J. (2009). A high accuracy ultrasonic system for measurement of air temperature. In H. Van Brussel, T. Burke, H. Spaan, E. Brinksmeier, T. Burke, & T. Burke (Eds.), Proceedings of the 9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009 (Vol. 2, pp. 134-137). euspen.

Aldawi, F. J. ; Longstaff, A. P. ; Fletcher, S. et al. / A high accuracy ultrasonic system for measurement of air temperature. Proceedings of the 9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009. editor / Hendrik Van Brussel ; Theresa Burke ; H. Spaan ; E. Brinksmeier ; Theresa Burke ; Theresa Burke. Vol. 2 euspen, 2009. pp. 134-137

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title = "A high accuracy ultrasonic system for measurement of air temperature",

abstract = "This paper introduces an ultrasonic measurement system to determine the mean temperature of the air between source and receiver. The system uses measurement of changes in the local speed of sound in the air to determine the temperature of the air. The changes in the speed of sound are determined by multi-frequency continuous wave frequency modulation (MFCWFM) techniques. This paper present a simple but efficient algorithm based upon phase shifts generated by three ultrasonic waves of different frequencies. To confirm concept feasibility, two low cost 25 kHz ultrasonic transducers were positioned face to face and used to transmit and receive ultrasound. Frequency modulation of the 25 KHz carrier frequency was used to transmit three frequencies; 25kHz, 1 kHz and 100 Hz. The proposed method can give a more accurate measurement of temperature than the time of flight (TOF) and phase shift (PS) methods. The range accuracy was found to be 0.07°C. The main advantages of this system are high resolution and ease of implementation.",

author = "Aldawi, {F. J.} and Longstaff, {A. P.} and S. Fletcher and C. Pislaru and A. Myers and J. Briggs",

year = "2009",

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booktitle = "Proceedings of the 9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009",

publisher = "euspen",

address = "United Kingdom",

note = "9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009 ; Conference date: 02-06-2009 Through 05-06-2009",

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Aldawi, FJ, Longstaff, AP , Fletcher, S, Pislaru, C, Myers, A & Briggs, J 2009, A high accuracy ultrasonic system for measurement of air temperature. in H Van Brussel, T Burke, H Spaan, E Brinksmeier, T Burke & T Burke (eds), Proceedings of the 9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009. vol. 2, euspen, pp. 134-137, 9th International Conference of the European Society for Precision Engineering and Nanotechnology, San Sebastian, Spain, 2/06/09.

A high accuracy ultrasonic system for measurement of air temperature. / Aldawi, F. J.; Longstaff, A. P.; Fletcher, S. et al.

Proceedings of the 9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009. ed. / Hendrik Van Brussel; Theresa Burke; H. Spaan; E. Brinksmeier; Theresa Burke; Theresa Burke. Vol. 2 euspen, 2009. p. 134-137.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Aldawi, F. J.

AU - Longstaff, A. P.

AU - Fletcher, S.

AU - Pislaru, C.

AU - Myers, A.

AU - Briggs, J.

N1 - Conference code: 9

PY - 2009

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N2 - This paper introduces an ultrasonic measurement system to determine the mean temperature of the air between source and receiver. The system uses measurement of changes in the local speed of sound in the air to determine the temperature of the air. The changes in the speed of sound are determined by multi-frequency continuous wave frequency modulation (MFCWFM) techniques. This paper present a simple but efficient algorithm based upon phase shifts generated by three ultrasonic waves of different frequencies. To confirm concept feasibility, two low cost 25 kHz ultrasonic transducers were positioned face to face and used to transmit and receive ultrasound. Frequency modulation of the 25 KHz carrier frequency was used to transmit three frequencies; 25kHz, 1 kHz and 100 Hz. The proposed method can give a more accurate measurement of temperature than the time of flight (TOF) and phase shift (PS) methods. The range accuracy was found to be 0.07°C. The main advantages of this system are high resolution and ease of implementation.

AB - This paper introduces an ultrasonic measurement system to determine the mean temperature of the air between source and receiver. The system uses measurement of changes in the local speed of sound in the air to determine the temperature of the air. The changes in the speed of sound are determined by multi-frequency continuous wave frequency modulation (MFCWFM) techniques. This paper present a simple but efficient algorithm based upon phase shifts generated by three ultrasonic waves of different frequencies. To confirm concept feasibility, two low cost 25 kHz ultrasonic transducers were positioned face to face and used to transmit and receive ultrasound. Frequency modulation of the 25 KHz carrier frequency was used to transmit three frequencies; 25kHz, 1 kHz and 100 Hz. The proposed method can give a more accurate measurement of temperature than the time of flight (TOF) and phase shift (PS) methods. The range accuracy was found to be 0.07°C. The main advantages of this system are high resolution and ease of implementation.

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BT - Proceedings of the 9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009

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A2 - Burke, Theresa

PB - euspen

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Y2 - 2 June 2009 through 5 June 2009

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Aldawi FJ, Longstaff AP , Fletcher S, Pislaru C, Myers A, Briggs J. A high accuracy ultrasonic system for measurement of air temperature. In Van Brussel H, Burke T, Spaan H, Brinksmeier E, Burke T, Burke T, editors, Proceedings of the 9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009. Vol. 2. euspen. 2009. p. 134-137

A high accuracy ultrasonic system for measurement of air temperature

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