Experimental Measurement of Air Temperature in an Enclosure Using Ultrasonic Oscillating Temperature Sensors (Uotses)

ELYOUNSI, Ali, MULROY, Tim J. and KALASHNIKOV, Alexander N (2023). Experimental Measurement of Air Temperature in an Enclosure Using Ultrasonic Oscillating Temperature Sensors (Uotses). The 10th International Electronic Conference on Sensors and Applications, 58 (1): 114.

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Official URL: http://dx.doi.org/10.3390/ecsa-10-16001
Open Access URL: https://www.mdpi.com/2673-4591/58/1/114/pdf?versio... (Published version)
Link to published version:: https://doi.org/10.3390/ecsa-10-16001


In this paper, we present experimental findings related to the measurement of air temperature within an enclosure. We utilized both a conventional temperature sensor and a UOTS (ultra-sensitive oscillating temperature sensor) for this purpose. The UOTS’s output frequency was measured using a microcontroller’s timer and direct memory access. In one experiment, we subjected the air inside the enclosure to rapid heating to evaluate the responsiveness of both sensors. In another experiment, the air temperature was indirectly increased through the laboratory’s heating system. The initial experiment reaffirmed the superior responsiveness of the UOTS, as observed in previous tests. The second experiment, conducted over a duration of more than 20 h, allowed us to establish a frequency-temperature curve for the UOTS. It also enabled us to determine that the UOTS exhibits sensitivity at approximately 45 Hz per degree Celsius. This assessment provided valuable insights into temperature underestimation by the conventional temperature sensor, revealing a discrepancy of 9 °C during the rapid heating experiment. This quantified the significant advantage offered by the UOTS in terms of accuracy and responsiveness.

Item Type: Article
Identification Number: https://doi.org/10.3390/ecsa-10-16001
SWORD Depositor: Symplectic Elements
Depositing User: Symplectic Elements
Date Deposited: 12 Apr 2024 10:19
Last Modified: 12 Apr 2024 14:00
URI: https://shura.shu.ac.uk/id/eprint/33572

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