{"title":"Highly sensitive humidity sensor for dielectric measurement (water absorption) in glass-fiber resins","authors":"V. Matko, D. Donlagic","doi":"10.1109/ICSD.1998.709347","DOIUrl":null,"url":null,"abstract":"An humidity sensor using a sensitive capacitive-dependent crystal is described. The authors describe the probe sensitivity (i.e. the dependence of df on dCx). In addition, a new idea of excitation of the entire humidity sensor with stochastic test signals is described, and the humidity surface-measuring method is given. This includes the influence of test signals on the weighting function uncertainty and on the A/D to D/A conversion. The results of air-humidity measurement and water absorption measurement in glass-fiber resins are shown experimentally. The uncertainty of the surface humidity measurement is less than 0.2% (T=15-25 /spl deg/C and air-humidity=50 to 98%).","PeriodicalId":13148,"journal":{"name":"ICSD'98. Proceedings of the 1998 IEEE 6th International Conference on Conduction and Breakdown in Solid Dielectrics (Cat. No.98CH36132)","volume":"1 1","pages":"561-564"},"PeriodicalIF":0.0000,"publicationDate":"1998-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ICSD'98. Proceedings of the 1998 IEEE 6th International Conference on Conduction and Breakdown in Solid Dielectrics (Cat. No.98CH36132)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICSD.1998.709347","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
An humidity sensor using a sensitive capacitive-dependent crystal is described. The authors describe the probe sensitivity (i.e. the dependence of df on dCx). In addition, a new idea of excitation of the entire humidity sensor with stochastic test signals is described, and the humidity surface-measuring method is given. This includes the influence of test signals on the weighting function uncertainty and on the A/D to D/A conversion. The results of air-humidity measurement and water absorption measurement in glass-fiber resins are shown experimentally. The uncertainty of the surface humidity measurement is less than 0.2% (T=15-25 /spl deg/C and air-humidity=50 to 98%).
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