Articles | Volume 12, issue 2
https://doi.org/10.5194/ms-12-1051-2021
https://doi.org/10.5194/ms-12-1051-2021
Research article
 | 
24 Nov 2021
Research article |  | 24 Nov 2021

Characteristics of the Received Signal of an Ultrasonic Sensor Installed in a Chamber with Micro-Leakage

Wonjun Seo, Seokyeon Im, and Geesoo Lee

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Subject: Mechanisms and Robotics | Techniques and Approaches: Experiment and Best Practice
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Cited articles

Alvarez-Arenas, T. E. G.: Acoustic Impedance Matching of Piezoelectric Transducer to the Air, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control., 51, 624–633, https://doi.org/10.1109/TUFFC.2004.1320834, 2004. 
Aslam, M. U., Masjuki, H. H., Kalam, M. A., Abdesselam, H., Mahlia, T. M. I., and Amalina, M. A.: An experimental investigation of CNG as an alternative fuel for a retrofitted gasoline vehicle, Fuel, 85, 717–724, https://doi.org/10.1016/j.fuel.2005.09.004, 2006. 
Chakraborty, J., Katunin, A., Klikowicz, P., and Salamak, M.: Early Crack Detection of Reinforced Concrete Structure Using Embedded Sensors, Sensors, 19, 3879, https://doi.org/10.3390/s19183879, 2019. 
Cheeke, J. D. N.: Fundamentals and Applications of Ultrasonic Waves, 2nd ed, CRC press: 6000 Broken Sound Parkway NW, USA, ISBN 978-1-1380-7720-1, 2017. 
Choi, J. Y., Truong, N. T. P., Pham, V. H., Boc, M. T., Kim, B. G., and Oh, J. H.: Fabrication of High Frequency Transducer for Nondestructive Testing, KSPSE, 24, 36–42, https://doi.org/10.9726/kspse.2020.24.3.036, 2020. 
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Short summary
This study is focused on analyzing signal changes according to internal flow and temperature change by generating micro-leakage, unlike previous studies that experimented with no flow inside a chamber. In addition, a new application method utilizing a phase shift by post-processing the ultrasonic reception signal was proposed. By using the ultrasonic sensor, a different method was proposed for the measurement of micro-leakage of gaseous fuel that relied on the existing pressure sensor.