J. Barrington, S. James, T. Kissinger, S. Staines, S. Prince, Erica Alucsa-Saeza, N. Lawson, R. Tatam
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引用次数: 0
摘要
这项工作表明，压力、应变和结构动力学等气动结构特征的关键参数，都可以通过使用距离分辨干涉测量(RRI)原理的光纤传感器来测量。当用于同时部署在风洞中高升力风上的传感器时，该方法在1526 Hz带宽下的压力和应变分辨率分别为31 μPa/√Hz和1 ne ε/√Hz，证明了RRI信号处理技术的准确性和通用性。
The use of range-resolved interferometry for multi-parameter sensing in a wind tunnel
The work presented demonstrates that key parameters in aerodynamic structural characterisation of pressure, strain, and structural dynamics, can be all measured via optical fibre sensors interrogated using the principles of range-resolved interferometry (RRI). When used to interrogate sensors simultaneously deployed on a high lift wind in a wind tunnel, the approach yielded resolutions of 31 μPa/ √ Hz and 1 nε/ √ Hz at a bandwidth of 1526 Hz for pressure and strain, respectively, demonstrating the accuracy and versatility of the RRI signal processing technique.
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