Two-dimensional flexural ultrasonic phased array for flow measurement
Two-dimensional flexural ultrasonic phased array for flow measurement
复制标题
用于流量测量的二维弯曲超声相控阵
DOI：
10.1109/ultsym.2017.8092220
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
S. Dixon
中科院分区：
文献类型：
--
作者：
L. Kang;A. Feeney;Ri;D. Lines;A. Jäger;Han Wang;Y. Arnaudov;S. Ramadas;M. Kupnik;S. Dixon
声漂效应影响了渡越时间型超声波流量计的到达时间检测概率和测量范围。该问题的一个解决方案是利用相控阵波束转向技术来补偿超声波束的弯曲。本文研究了二维弯曲超声相控阵天线的设计、制作和性能。内径为146 mmis的仪表主体被加工以容纳阵列，并且在0至2500 m3/h的不同流量下进行流量测试。实验结果表明，随着流量的增加，超声波束上行时阵列的最佳转向角从30°增加到40.5°，下行时阵列的最佳转向角从30°减小到22.5°。这种概念验证设计展示了弯曲超声相控阵作为气体流量测量的准确、经济、高效和稳健解决方案的潜力。
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.