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http://dx.doi.org/10.5050/KSNVE.2015.25.7.455

Comparison of Ultrasonic Paths for Flow Rate Measurement  

Kim, Ju Wan (Soongsil University)
Piao, Chunguang (Soongsil University)
Kim, Jin Oh (Soongsil University)
Park, Doo-Sik (Pana Korea Co., Ltd.)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.25, no.7, 2015 , pp. 455-461 More about this Journal
Abstract
The paper deals with the accuracy comparison between two kinds of ultrasonic paths for flow rate measurement. In the Z-path, two transducers are installed on the opposite sides of each other on a pipe, and the ultrasonic waves generated at one transducer propagate to arrive at the other one only by refraction. In the V-path, two transducers are installed on one side of a pipe, and the ultrasonic waves reflected at the inner wall of the pipe are received. Transit times were confirmed to identify the propagation paths by comparing the theoretically calculated results and measured ones. The flow rate measurements with two kinds of ultrasonic paths appeared very similar. It would be possible to select either of the paths by considering the advantages and disadvantages.
Keywords
Ultrasound; Path; Flow Rate; Transducer; Transit Time;
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Times Cited By KSCI : 3  (Citation Analysis)
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1 Moore, P. I., Brown, G. J. and Stimpson, B. P., 2000, Ultrasonic Transit-time Flowmeters Modelled with Theoretical Velocity Profiles: Methodology, Measurement Science and Technology, Vol. 11, No. 12, pp. 1802-1811.   DOI
2 Lee, D. K. and Cho, Y., 2011, Error Characteristics of Clamp-on Ultrasonic Flowmeters Depending on Location of Sensors and Downstream Straight Run of Bent Pipe, Transactions of the KSME (B), Vol. 35, No. 8, pp. 861-868.
3 Kim, J. O., 2000, Ultrasonic Sensors and Actuators, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 10, No. 5, pp. 723-728.
4 Lynnworth, L. C., 1989, Ultrasonic Measurements for Process Control, Academic Press, New York, Ch. 4.
5 Lee, E. S., Kwon, O. H. and Rho, M. H., 2003, A Study on the Ultrasonic Flow-meter System Development, Journal of Industrial Science and Technology Institute, Vol. 17, No. 1, pp. 55-62.
6 Funck, B. and Mitzkus, A., 1996, Acoustic Transfer Function of the Clamp-on Flowmeter, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Vol. 43, No. 4, pp. 569-575.   DOI
7 Lee, Y. J. and Im, J. I., 2006, Development and Evaluation of the Piezoelectric Transducer for the Transit-time Ultrasonic Flowmeters, Journal of the Institute of Electronics Engineers of Korea, Vol. 43, No. 4, pp. 30-34.
8 Kim, T. E., Chun, H. Y., Kim, J. O. and Park, J., 2010, Mode Conversion and Energy Transmission Ratio of Elastic Waves, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 20, No. 3, pp. 296-307.   DOI
9 Piao, C., Kim, D. J. and Kim, J. O., 2015, Energy Transmission of Elastic Waves in Ultrasonic Transducers, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 25, No. 2, pp. 124-132.   DOI
10 Achenbach, J. D., 1975, Wave Propagation in Elastic Solids, North-Holland, Amsterdam, Chapter 5.
11 Rose, J. L., 1999, Ultrasonic Waves in Solid Media, Cambridge University Press, Cambridge, Chapter 5.