@inproceedings{7935d210bc2646e1ac5c63f7457d66f1,
title = "Eddy current testing for blade edge micro cracks of aircraft engine",
abstract = "Based on the problems of low detection efficiency in the micro cracks detection of aircraft engine blades, a differential excitation eddy current testing system was designed and developed. The function and the working principle of the system were described, the problems which contained the manufacture method of simulated cracks, signal generating, signal processing and the signal display method were described. The detection test was carried out by taking a certain model aircraft engine blade with simulated cracks as a tested specimen. The test data was processed by digital low-pass filter in the computer and the crack signals of time domain display and Lissajous figure display were acquired. By comparing the test results, it is verified that Lissajous figure display shows better performance compared to time domain display when the crack angle is small. The test results show that the eddy current testing system designed in this paper is feasible to detect the micro cracks on the aeroengine blade and can effectively improve the detection efficiency of micro cracks in the practical detection work.",
keywords = "Aeroengine blade, Eddy current sensor, Micro crack, The differential excitation",
author = "Zhang, {Wei Min} and Xu, {Min Dong} and Gao, {Xuan Yi} and Xin Jin and Feng Qin",
note = "Publisher Copyright: {\textcopyright} 2017 SPIE.; Applied Optics and Photonics China: 3D Measurement Technology for Intelligent Manufacturing, AOPC 2017 ; Conference date: 04-06-2017 Through 06-06-2017",
year = "2017",
doi = "10.1117/12.2281274",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Asundi, {Anand Krishna} and Huijie Zhao and Wolfgang Osten",
booktitle = "AOPC 2017",
address = "United States",
}