Articles | Volume 14, issue 2
https://doi.org/10.5194/jsss-14-275-2025
https://doi.org/10.5194/jsss-14-275-2025
Regular research article
 | 
20 Nov 2025
Regular research article |  | 20 Nov 2025

Flow measurement by means of wideband acoustic signals in single-mode waveguides

Jorge M. Monsalve, Marcel Jongmanns, Sandro G. Koch, and Harald Schenk

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Cited articles

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Köchner, H., Meling, A., and Baumgärtner, M.: Optical flow field investigations for design improvements of an ultrasonic gas meter, Flow Meas. Instrum., 7, 133–140, https://doi.org/10.1016/S0955-5986(96)00019-2, 1996. 
Melaina, M. W., Antonia, O., and Penev, M.: Blending hydrogen into natural gas pipeline networks: a review of key issues, NREL/TP-5600-51995, NREL, https://www.nrel.gov/docs/fy13osti/51995.pdf (last access: 26 February 2024), 2013. 
Meykens, K., Van Rompaey, B., and Janssen, H.: Dispersion in acoustic waveguides—A teaching laboratory experiment, Am. J. Phys., 67, 400–406, https://doi.org/10.1119/1.19275, 1999. 
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Short summary
In this article we present a new method to measure the flow of a gas by means of ultrasound waves. Instead of sending pulses across the cross-section of the pipe, we make ultrasound travel along the length of the pipe. In other words, the pipe becomes an acoustic waveguide. This has the advantage that the travelling distance can become much longer, and so the measurement of the transit time becomes more sensitive to changes in the flow or the speed of sound.
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