Design and Performance Research of a New Dual-Excitation Uniform Eddy Current Probe
Abstract
:1. Introduction
2. Theoretical Research
2.1. The Crack Defect Test Principle of a UEC Probe
2.2. Establishment and Characteristic Analysis of the Simulation Model
2.3. Optimization of Distance between Excitation Coils
2.4. Influence of Crack Defect Depth on Test Signal
2.5. Influence of Crack Defect Direction on Test Signal
3. Experiment and Results
3.1. The Testing of Crack Defects with Different Depths
3.2. The Testing of Crack Defects with Different Directions
3.3. The Testing of the Probe’s Measurement Accuracy
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Conflicts of Interest
References
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Parameter | Excitation Coil | Detection Coil |
---|---|---|
Length (mm) | L1 = 10 | L2 = 10 |
Width (mm) | D1 = 2 | D2 = 2 |
Height (mm) | H1 = 8 | H2 = 7.6 |
Air area radius (mm) | R = 50 | |
Spacing (mm) | S = 8 |
Material | Attributes | Conductivity (S/m) | Relative Permeability |
---|---|---|---|
Coil | copper | 5.998 × 107 | 1 |
Carbon steel plate | iron | 1.12 × 107 | 500 |
Air area | air | 10 | 1 |
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Chen, T.; Shi, H.; Dong, Y.; Lv, C.; Deng, Z.; Song, X.; Liao, C. Design and Performance Research of a New Dual-Excitation Uniform Eddy Current Probe. Sensors 2022, 22, 8850. https://doi.org/10.3390/s22228850
Chen T, Shi H, Dong Y, Lv C, Deng Z, Song X, Liao C. Design and Performance Research of a New Dual-Excitation Uniform Eddy Current Probe. Sensors. 2022; 22(22):8850. https://doi.org/10.3390/s22228850
Chicago/Turabian StyleChen, Tao, Hai Shi, Yuanhang Dong, Cheng Lv, Zhiyang Deng, Xiaochun Song, and Chunhui Liao. 2022. "Design and Performance Research of a New Dual-Excitation Uniform Eddy Current Probe" Sensors 22, no. 22: 8850. https://doi.org/10.3390/s22228850