Name
Abstract | ||
|---|---|---|
Transit-time ultrasonic flowmeters are widely used in industry to measure fluid flow. In practice, ultrasonic flowmeters either show a zero-flow error or suffer from a significant random error due to a limited signal-to-noise ratio, requiring a significant amount of averaging to achieve good precision. This work presents a method that minimizes the zero-flow error while keeping the random error low, independent of the hardware used. The proposed algorithm can adjust to changing zero-flow errors, while a flow is present. The technique combines the benefits of two common methods of determining the transit time difference between the upstream and downstream ultrasonic waves: cross correlation and zero-crossing detection. The algorithm is verified experimentally using a flow loop. It is shown that the zero-flow error can he greatly reduced without compromising the random error or increasing circuit complexity. |
Year | DOI | Venue |
|---|---|---|
2021 | 10.1109/TIM.2020.3007907 | IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT |
Keywords | DocType | Volume |
Cross correlation, flow measurement, reciprocity, transit time, ultrasonic flowmeter, zero crossings, zero-flow error | Journal | 70 |
ISSN | Citations | PageRank |
0018-9456 | 0 | 0.34 |
References | Authors | |
0 | 6 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Douwe M. Van Willigen | 1 | 0 | 0.34 |
| Paul L. M. J. Van Neer | 2 | 0 | 0.34 |
| Jack Massaad | 3 | 0 | 0.34 |
| Nico de Jong | 4 | 10 | 3.52 |
| Martin D. Verweij | 5 | 11 | 3.90 |
| Michiel A. P. Pertijs | 6 | 90 | 24.37 |