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http://dx.doi.org/10.46670/JSST.2021.30.1.25

Development of Ultrasonic Sediment-level Sensor for Sewage Pipe Application  

Park, Buem-Keun (Electronic Convergence Division, Korea Institute of Ceramic Engineering & Technology)
Shin, Jeong-Hee (Electronic Convergence Division, Korea Institute of Ceramic Engineering & Technology)
Paik, Jong-Hoo (Electronic Convergence Division, Korea Institute of Ceramic Engineering & Technology)
LEE, Young-Jin (Electronic Convergence Division, Korea Institute of Ceramic Engineering & Technology)
Publication Information
Journal of Sensor Science and Technology / v.30, no.1, 2021 , pp. 25-29 More about this Journal
Abstract
In this study, we successfully developed a highly reliable ultrasonic sediment sensor to detect the sediment levels in sewer pipes in harsh environments. The ultrasonic transducer employed in the ultrasonic sediment sensor was designed so as to possess a simple structure. The developed sensor was carefully optimized by simulating the electromechanical characteristics, radiated sound wave pressures, and directivity via finite element analysis. It was also designed to possess a simple mounting structure minimizing the flow disturbance in a 400-mm sewer pipe; additionally, eight ultrasonic transducers were arranged in a four-channel mode, allowing for measurement of the sediment height in five easy steps. Through experimental evaluations, we verified the performance of the ultrasonic sediment-level sensor and its industrial applicability. The results suggested that although the precision value was notably low at 15 mm, the sediment detection performance was adequate; therefore, the developed sensor can potentially be used in industrial applications.
Keywords
Sediment Level Sensor; Ultrasonic transducer; Sewer Pipe; Piezoelectric; FEA;
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