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 proceedingConference contribution

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.

LanguageEnglish
Title of host publicationProceedings of the 9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009
EditorsHendrik Van Brussel, Theresa Burke, H. Spaan, E. Brinksmeier, Theresa Burke, Theresa Burke
Publishereuspen
Pages134-137
Number of pages4
Volume2
ISBN (Electronic)9780955308260
Publication statusPublished - 2009
Event9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009 - San Sebastian, Spain
Duration: 2 Jun 20095 Jun 2009

Conference

Conference9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009
CountrySpain
CitySan Sebastian
Period2/06/095/06/09

Fingerprint

ultrasonics
Ultrasonics
Acoustic wave velocity
Frequency modulation
Phase shift
frequency modulation
air
phase shift
Air
Ultrasonic measurement
Ultrasonic transducers
acoustics
carrier frequencies
Ultrasonic waves
ultrasonic radiation
Temperature
continuous radiation
temperature
transducers
receivers

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. ; Pislaru, C. ; Myers, A. ; Briggs, J. / 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
@inproceedings{48e69d1aae19487582480e04f43f9a34,
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",
language = "English",
volume = "2",
pages = "134--137",
editor = "{Van Brussel}, Hendrik and Theresa Burke and H. Spaan and E. Brinksmeier and Theresa Burke and Theresa Burke",
booktitle = "Proceedings of the 9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009",
publisher = "euspen",

}

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, EUSPEN 2009, San Sebastian, Spain, 2/06/09.

A high accuracy ultrasonic system for measurement of air temperature. / Aldawi, F. J.; Longstaff, A. P.; Fletcher, S.; Pislaru, C.; Myers, A.; Briggs, J.

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 proceedingConference contribution

TY - GEN

T1 - A high accuracy ultrasonic system for measurement of air temperature

AU - Aldawi, F. J.

AU - Longstaff, A. P.

AU - Fletcher, S.

AU - Pislaru, C.

AU - Myers, A.

AU - Briggs, J.

PY - 2009

Y1 - 2009

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.

UR - http://www.scopus.com/inward/record.url?scp=84908158770&partnerID=8YFLogxK

UR - https://www.euspen.eu/euspen-knowledge-base/proceedings/

M3 - Conference contribution

VL - 2

SP - 134

EP - 137

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

A2 - Van Brussel, Hendrik

A2 - Burke, Theresa

A2 - Spaan, H.

A2 - Brinksmeier, E.

A2 - Burke, Theresa

A2 - Burke, Theresa

PB - euspen

ER -

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