Ultrasonic Measurements of Temperature in Aqueous Solutions : Why and How
Joint Authors
Kalashnikov, A. N.
Ivchenko, V.
Alzebda, S.
Afaneh, A.
Source
Physics Research International
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-04-20
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The paper describes two different approaches to ultrasonic measurements of temperature in aqueous solutions.
The first approach uses two narrowband ultrasonic transducers and support electronics that form an oscillating sensor which output frequency is related to the measured temperature.
This low-cost sensor demonstrated sensitivity of about 40 Hz/K at the distance of 190 mm and the operating frequency of about 25 kHz.
The second approach utilised pulse-echo mode at the centre frequency of 20 MHz.
The reflector featured a cavity that was filled with deionised water.
The ultrasound propagation delay in the cavity was related to the temperature in the solution.
The experiments were conducted for deionised water, and solutions of sodium persulfate, sodium chloride, and acetic acid with concentrations up to 0.5 M.
In the experiments (conducted within the temperature range from 15 to 30°C), we observed increases in the ultrasound velocity for increased temperatures and concentrations as was expected.
Measurement results were compared with literature data for pure and seawater.
It was concluded that ultrasonic measurements of temperature were conducted with the resolution well below 0.1 K for both methods.
Advantages of ultrasonic temperature measurements over conventional thermometers were discussed.
American Psychological Association (APA)
Afaneh, A.& Alzebda, S.& Ivchenko, V.& Kalashnikov, A. N.. 2011. Ultrasonic Measurements of Temperature in Aqueous Solutions : Why and How. Physics Research International،Vol. 2011, no. 2011, pp.1-10.
https://search.emarefa.net/detail/BIM-450271
Modern Language Association (MLA)
Afaneh, A.…[et al.]. Ultrasonic Measurements of Temperature in Aqueous Solutions : Why and How. Physics Research International No. 2011 (2011), pp.1-10.
https://search.emarefa.net/detail/BIM-450271
American Medical Association (AMA)
Afaneh, A.& Alzebda, S.& Ivchenko, V.& Kalashnikov, A. N.. Ultrasonic Measurements of Temperature in Aqueous Solutions : Why and How. Physics Research International. 2011. Vol. 2011, no. 2011, pp.1-10.
https://search.emarefa.net/detail/BIM-450271
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-450271