{"title":"Noncontact sensing of physical parameters by Q measurement","authors":"K. Namjoshi, P. Biringer","doi":"10.1109/IAS.1990.152386","DOIUrl":null,"url":null,"abstract":"Changes in the quality factor, Q, of a solenoid due to nearby nonmagnetic conducting objects are investigated. The influence of distance and supply frequency on the quality factor is calculated. The results are applied to estimate changes in parameters such as temperature and distance. The results show that changes in Q may be satisfactorily used to monitor physical properties of the workpiece, such as distance or temperature, without physical contacts.<<ETX>>","PeriodicalId":185839,"journal":{"name":"Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting","volume":"153 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1990-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IAS.1990.152386","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Changes in the quality factor, Q, of a solenoid due to nearby nonmagnetic conducting objects are investigated. The influence of distance and supply frequency on the quality factor is calculated. The results are applied to estimate changes in parameters such as temperature and distance. The results show that changes in Q may be satisfactorily used to monitor physical properties of the workpiece, such as distance or temperature, without physical contacts.<>
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