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线圈形状对叶片叶尖间隙平面涡流传感器特性影响的实验研究

Experimental Investigation on the Effect of Coil Shape on Planar Eddy Current Sensor Characteristic for Blade Tip Clearance.

作者信息

Zhao Lingqiang, Lyu Yaguo, Liu Fulin, Liu Zhenxia, Zhao Ziyu

机构信息

School of Power and Energy, Northwestern Polytechnical University, Youyi West Road 127#, Xi'an 710054, China.

Xi'an Research Institute of High-Tech, Xi'an 710054, China.

出版信息

Sensors (Basel). 2024 Sep 23;24(18):6133. doi: 10.3390/s24186133.

DOI:10.3390/s24186133
PMID:39338878
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11436098/
Abstract

Given the increasing application of eddy current sensors for measuring turbine tip clearance in aero engines, enhancing the performance of these sensors is essential for improving measurement accuracy. This study investigates the influence of coil shape on the measurement performance of planar eddy current sensors and identifies an optimal coil shape to enhance sensing capabilities. To achieve this, various coil shapes-specifically circular, square, rectangular wave, and triangular wave-were designed and fabricated, featuring different numbers of turns for the experiment at room temperature. By employing a method for calculating coil inductance, the performance of each sensor was evaluated based on key metrics: measurement range, sensitivity, and linearity. Experimental results reveal that the square coil configuration outperforms other shapes in overall measurement performance. Notably, the square coil demonstrated a measurement range of 0 mm to 8 mm, a sensitivity of 0.115685 μH/mm, and an impressive linearity of 98.41% within the range of 0 mm to 2 mm. These findings indicate that the square coil configuration enhances measurement capabilities. The conclusions drawn from this study provide valuable insights for selecting coil shapes and optimizing the performance of planar eddy current sensors, thereby contributing to the advancement of turbine tip clearance measurement techniques in aero engines.

摘要

鉴于涡流传感器在航空发动机涡轮叶尖间隙测量中的应用日益增加，提高这些传感器的性能对于提高测量精度至关重要。本研究调查了线圈形状对平面涡流传感器测量性能的影响，并确定了一种优化的线圈形状以增强传感能力。为此，设计并制作了各种线圈形状，具体为圆形、方形、矩形波和三角形波，在室温下针对不同匝数进行了实验。通过采用一种计算线圈电感的方法，基于关键指标（测量范围、灵敏度和线性度）对每个传感器的性能进行了评估。实验结果表明，方形线圈配置在整体测量性能上优于其他形状。值得注意的是，方形线圈的测量范围为0毫米至8毫米，灵敏度为0.115685微亨/毫米，在0毫米至2毫米范围内具有高达98.41%的出色线性度。这些发现表明方形线圈配置增强了测量能力。本研究得出的结论为选择线圈形状和优化平面涡流传感器的性能提供了有价值的见解，从而有助于推动航空发动机涡轮叶尖间隙测量技术的发展。

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本文引用的文献

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Experimental Investigation of High Temperature-Resistant Inductive Sensor for Blade Tip Clearance Measurement.高温感应式叶片尖部间隙测量传感器的实验研究
Sensors (Basel). 2018 Dec 24;19(1):61. doi: 10.3390/s19010061.
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Design, Fabrication and Testing of a High-Sensitive Fibre Sensor for Tip Clearance Measurements.设计、制作和测试一种用于刀尖间隙测量的高灵敏度光纤传感器。
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用于叶片尖端定时和叶片尖端间隙测量系统的磁阻传感器的研发
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