Effects of Velocity Profiles on Measuring Accuracy of Transit-Time Ultrasonic Flowmeter
Source abstract
Abstract
Ultrasonic wave carries the information for flowing velocity when it is propagating in flowing fluids. Flowrate can be obtained by measuring the propagation time of ultrasonic wave. The principle of transit-time ultrasonic flowmeters used today was based on that the velocity is uniform along the propagation path of the ultrasonic wave. However, it is well known that the velocity profiles in a pipe are not uniform both in laminar flow and turbulent flow. Emphasis on the effects of velocity profiles across the pipe on the propagation time of ultrasonic wave, theoretical flowrate correction factors considering the real velocity profile were proposed for laminar and turbulent flow to obtain higher accuracy. Experiment data of ultrasonic flowmeter and weighting method are compared to verify the proposed theoretical correction factors. The average relative error of proposed correction factor is determined to be 0.976% for laminar flow and 0.25% for turbulent flow.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Flow Measurement and Analysis · Electrical and Bioimpedance Tomography · Advanced Sensor Technologies Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou 221116, China
Xuhai College, China University of Mining and Technology, Xuzhou 221008, China
References (26)
Show source-provided references
1. Modelling and experimental studies on a proportional valve using an innovative dynamic flow-rate measurement in fluid power systems10.1177/0954406217721259 ↗
2. New Analysis Scheme of Flow-Acoustic Coupling for Gas Ultrasonic Flowmeter with Vortex near the Transducer10.3390/s18041151 ↗
3. An electromic differential pressure flowmeter and a resistance meter for continuous measurement of vascular resistance
4. Investigation of a floating element flowmeter10.1016/0955-5986(92)90019-2 ↗
5. Principles and design feasibility of a Doppler ultrasound intravascular volumetric flowmeter10.1109/10.312098 ↗
6. The theory of induced voltage electromagnetic flowmeter10.1017/S0022112070002586 ↗
7. A vortex-shedding flowmeter based on IPMCs10.1088/0964-1726/25/1/015011 ↗
8. Ultrasonic flowmeters: Half-century progress report, 1955–200510.1016/j.ultras.2006.05.046 ↗
9. Upstream Ultrasonic Level Based Soft Sensing of Volumetric Flow of Non-Newtonian Fluids in Open Venturi Channels10.1109/JSEN.2018.2831445 ↗
10. A Model-Based Hybrid Ultrasonic Gas Flowmeter10.1109/JSEN.2018.2828328 ↗
11. Echo energy integral based signal processing method for ultrasonic gas flow meter10.1016/j.sna.2018.05.019 ↗
12. Development of an Ultrasonic Airflow Measurement Device for Ducted Air10.3390/s150510705 ↗
13. Numerical simulation of transit-time ultrasonic flowmeters: Uncertainties due to flow profile and fluid turbulence10.1016/S0041-624X(02)00387-6 ↗
14. Transit time ultrasonic flowmeter: Velocity profile estimation
15. Guidelines for the use of ultrasonic non-invasive metering techniques10.1016/S0955-5986(02)00043-2 ↗
16. Multiple Weighing Based Method for Realizing Flow10.1007/s12647-014-0122-0 ↗
17. Perturbation theory applied to sound propagation in flowing media confined by a cylindrical waveguide10.1121/1.1331676 ↗
18. Nonlinearities in ultrasonic flow measurement10.1016/j.flowmeasinst.2007.09.004 ↗
19. Ultrasonic flowmeters: Temperature gradients and transducer geometry effects10.1016/S0041-624X(02)00429-8 ↗
20. Online monitoring of transit-time ultrasonic flowmeters based on fusion of optical observation10.1016/j.measurement.2011.02.010 ↗
21. Further Studies of the Accuracy of Clamp-on Transit-Time Ultrasonic Flowmeters for Liquids10.1109/TIM.2009.2012954 ↗
22. Mahadeva, D.V., Baker, R.C., and Woodhouse, J. (2008, January 12–15). Studies of the Accuracy of Clamp-on Transit Time Ultrasonic Flowmeters. Proceedings of the 2008 IEEE Instrumentation and Measurement Technology Conference, Victoria, Canada.10.1109/IMTC.2008.4547177 ↗
23. Rajita, G., and Mandal, N. (2016, January 28–30). Review on transit time ultrasonic flowmeter. Proceedings of the International Conference on Control, Kolkata, India.10.1109/CIEC.2016.7513740 ↗
24. Note: Ultrasonic gas flowmeter based on optimized time-of-flight algorithms
25. Measurement of transitional flow in pipes using ultrasonic flowmeters10.1088/0169-5983/46/5/055501 ↗
26. Calibration of large diameter gas flowmeter by the corresponding velocity distribution equation