Experimental Investigation on the Effect of Coil Shape on Planar Eddy Current Sensor Characteristic for Blade Tip Clearance
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...
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MDPI AG
2024-09-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/24/18/6133 |
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| author | Lingqiang Zhao Yaguo Lyu Fulin Liu Zhenxia Liu Ziyu Zhao |
| author_facet | Lingqiang Zhao Yaguo Lyu Fulin Liu Zhenxia Liu Ziyu Zhao |
| author_sort | Lingqiang Zhao |
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| description | 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. |
| format | Article |
| id | doaj-art-322fd8acd5244c2e88d6b525920ffeb8 |
| institution | OA Journals |
| issn | 1424-8220 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | MDPI AG |
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| series | Sensors |
| spelling | doaj-art-322fd8acd5244c2e88d6b525920ffeb82025-08-20T01:55:51ZengMDPI AGSensors1424-82202024-09-012418613310.3390/s24186133Experimental Investigation on the Effect of Coil Shape on Planar Eddy Current Sensor Characteristic for Blade Tip ClearanceLingqiang Zhao0Yaguo Lyu1Fulin Liu2Zhenxia Liu3Ziyu Zhao4School of Power and Energy, Northwestern Polytechnical University, Youyi West Road 127#, Xi’an 710054, ChinaSchool of Power and Energy, Northwestern Polytechnical University, Youyi West Road 127#, Xi’an 710054, ChinaSchool of Power and Energy, Northwestern Polytechnical University, Youyi West Road 127#, Xi’an 710054, ChinaSchool of Power and Energy, Northwestern Polytechnical University, Youyi West Road 127#, Xi’an 710054, ChinaXi’an Research Institute of High-Tech, Xi’an 710054, ChinaGiven 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.https://www.mdpi.com/1424-8220/24/18/6133planar eddy current sensorcoil shapeblade tip clearanceinductancemeasurement rangesensitivity |
| spellingShingle | Lingqiang Zhao Yaguo Lyu Fulin Liu Zhenxia Liu Ziyu Zhao Experimental Investigation on the Effect of Coil Shape on Planar Eddy Current Sensor Characteristic for Blade Tip Clearance Sensors planar eddy current sensor coil shape blade tip clearance inductance measurement range sensitivity |
| title | Experimental Investigation on the Effect of Coil Shape on Planar Eddy Current Sensor Characteristic for Blade Tip Clearance |
| title_full | Experimental Investigation on the Effect of Coil Shape on Planar Eddy Current Sensor Characteristic for Blade Tip Clearance |
| title_fullStr | Experimental Investigation on the Effect of Coil Shape on Planar Eddy Current Sensor Characteristic for Blade Tip Clearance |
| title_full_unstemmed | Experimental Investigation on the Effect of Coil Shape on Planar Eddy Current Sensor Characteristic for Blade Tip Clearance |
| title_short | Experimental Investigation on the Effect of Coil Shape on Planar Eddy Current Sensor Characteristic for Blade Tip Clearance |
| title_sort | experimental investigation on the effect of coil shape on planar eddy current sensor characteristic for blade tip clearance |
| topic | planar eddy current sensor coil shape blade tip clearance inductance measurement range sensitivity |
| url | https://www.mdpi.com/1424-8220/24/18/6133 |
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