Journal of Sensors and Sensor Systems
Journal of Sensors and Sensor Systems
JSSS
Articles | Volume 14, issue 2
Articles | Volume 14, issue 2
https://doi.org/10.5194/jsss-14-275-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jsss-14-275-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 2
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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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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