{"title":"抑制表面磁场测量技术中传感器升空对裂纹信号的影响","authors":"R. Amineh, S. Sadeghi, R. Moini","doi":"10.1109/ICIT.2003.1290332","DOIUrl":null,"url":null,"abstract":"As in the eddy current technique, a major problem for crack measurement in the surface magnetic field measurement (SMFM) technique is the lift-off distance of the sensor. The nonzero value of lift-off distance tends to smear out the discontinuity in the SMFM crack signal, causing errors in crack characterization. The paper presents a method for sensor lift-off evaluation and crack signal restoration in the SMFM technique. The method employs a deconvolution technique and uses a suitable cost function based on the relations available for electromagnetic field distributions at the metal surface. Simulation results are presented to demonstrate the accuracy of the method.","PeriodicalId":193510,"journal":{"name":"IEEE International Conference on Industrial Technology, 2003","volume":"111 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2003-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Suppressing sensor lift-off effects on cracks signals in surface magnetic field measurement technique\",\"authors\":\"R. Amineh, S. Sadeghi, R. Moini\",\"doi\":\"10.1109/ICIT.2003.1290332\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"As in the eddy current technique, a major problem for crack measurement in the surface magnetic field measurement (SMFM) technique is the lift-off distance of the sensor. The nonzero value of lift-off distance tends to smear out the discontinuity in the SMFM crack signal, causing errors in crack characterization. The paper presents a method for sensor lift-off evaluation and crack signal restoration in the SMFM technique. The method employs a deconvolution technique and uses a suitable cost function based on the relations available for electromagnetic field distributions at the metal surface. Simulation results are presented to demonstrate the accuracy of the method.\",\"PeriodicalId\":193510,\"journal\":{\"name\":\"IEEE International Conference on Industrial Technology, 2003\",\"volume\":\"111 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2003-12-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE International Conference on Industrial Technology, 2003\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICIT.2003.1290332\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE International Conference on Industrial Technology, 2003","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICIT.2003.1290332","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Suppressing sensor lift-off effects on cracks signals in surface magnetic field measurement technique
As in the eddy current technique, a major problem for crack measurement in the surface magnetic field measurement (SMFM) technique is the lift-off distance of the sensor. The nonzero value of lift-off distance tends to smear out the discontinuity in the SMFM crack signal, causing errors in crack characterization. The paper presents a method for sensor lift-off evaluation and crack signal restoration in the SMFM technique. The method employs a deconvolution technique and uses a suitable cost function based on the relations available for electromagnetic field distributions at the metal surface. Simulation results are presented to demonstrate the accuracy of the method.
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