电子测量与仪器学报

李浩琪,行鸿彦,王水璋,侯天浩.多反射式超声波测风模型及算法研究[J].电子测量与仪器学报,2023,37(9):110-118

多反射式超声波测风模型及算法研究

Multi-reflection ultrasonic wind measuring model and algorithm research

DOI：

英文关键词:Fluent simulation shadow effect ultrasonic wind measurement adaptive weighting

基金项目:国家重点研发计划项目(2021YFE0105500)、国家自然科学基金(62171228) 和江苏省研究生科研创新计划(KYCX22_1195) 项目资助

作者	单位
李浩琪	1. 南京信息工程大学电子与信息工程学院
行鸿彦	1. 南京信息工程大学电子与信息工程学院
王水璋	2. 南京多基观测技术研究院有限公司
侯天浩	1. 南京信息工程大学电子与信息工程学院

Author	Institution
Li Haoqi	1. School of Electronic and Information Engineering, Nanjing University of Information Science and Technology
Xing Hongyan	1. School of Electronic and Information Engineering, Nanjing University of Information Science and Technology
Wang Shuizhang	2. Nanjing Institute of Multi-Platform Observation Technology
Hou Tianhao	1. School of Electronic and Information Engineering, Nanjing University of Information Science and Technology

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中文摘要:

针对当前超声波测风阵列体积大传输路径短,测量精度低的问题,设计了 4 个收发一体的超声波换能器,按方形排列, 探头垂直朝下放置,超声波信号通过在测风区域之间多次反射完成测风,相比于一次反射超声波测风阵列体积缩小 20%。基于所建模型,提出自适应测风算法以减弱阴影效应对测风精度的影响。利用 SpaceClaim Design Modeler 软件建立了测风阵列以及风洞模型,通过 Fluent Meshing 进行网格划分,使用 Fluent 软件改变模拟风洞内的风速和风向,验证了所设计的小型超声波测风阵列和自适应权重测风算法在减弱阴影效应提高测量精度的优越性。实验结果表明,自适应权重测风算法相比于传统测风算法的测速精度提高了 12. 44%,测角精度提高了 10. 40%。

英文摘要:

Aiming at the short transmission path and low measurement accuracy of the small ultrasonic wind measurement array, four ultrasonic transducers integrating transceivers are designed, arranged in a square, with the probes placed vertically downwards, and the ultrasonic signals are reflected multiple times between the wind measurement areas. The wind measurement is completed, and the volume of the one-time reflection ultrasonic wind measurement array is reduced by 20%. Based on the built model, an adaptive wind measurement algorithm is proposed to reduce the influence of shadow effect on wind measurement accuracy. Using the SpaceClaim Design Modeler software, the wind array and wind tunnel model were established, the grid was divided by Fluent Meshing, and the wind speed and direction in the simulated wind tunnel were changed using Fluent software, and the designed small ultrasonic wind array and adaptive weight were verified. The superiority of the wind measurement algorithm in weakening the shadow effect and improving the measurement accuracy. The experimental results show that compared with the traditional wind measurement algorithm, the speed measurement accuracy of the adaptive weight wind measurement algorithm is increased by 12. 44%, and the angle measurement accuracy is increased by 10. 40%.

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