Abstract
The arrival time detection probability and the measurement range of transit-time ultrasonic flow meters are undermined by the sound drift effect. One solution to this problem is utilizing a phased-array beam steering technique to compensate the bend of the ultrasonic beams. The design, the fabrication and the characterization of two-dimensional flexural ultrasonic phased arrays is investigated in this paper. A meter body with an inner diameter of 146 mmis machined to accommodate the arrays, and flow tests are carried out at different flow rates ranging from 0 to 2500 m3/h. Experimental results indicate that, with the increase of flow rate, the optimum steering angle of arrays increases from 30° to 40.5° when ultrasonic beams travel upstream and decreases from 30° to 22.5° when ultrasonic beams travel downstream. This proof-of-concept design demonstrates the potential of the flexural ultrasonic phased array as an accurate, economic, efficient, and robust solution for gas flow measurement.
Original language | English |
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Title of host publication | 2017 IEEE International Ultrasonics Symposium, IUS 2017 |
Place of Publication | Piscataway, NJ. |
Number of pages | 4 |
ISBN (Electronic) | 9781538633830 |
DOIs | |
Publication status | Published - 31 Oct 2017 |
Externally published | Yes |
Event | 2017 IEEE International Ultrasonics Symposium, IUS 2017 - Washington, United States Duration: 6 Sep 2017 → 9 Sep 2017 http://ewh.ieee.org/conf/ius/2017/ |
Conference
Conference | 2017 IEEE International Ultrasonics Symposium, IUS 2017 |
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Abbreviated title | IEEE IUS 2017 |
Country | United States |
City | Washington |
Period | 6/09/17 → 9/09/17 |
Internet address |
Keywords
- flexural ultrasonic transducer
- flow measurement
- phased array
- transit-time flow meter