BSc, GrandInstP, FBDO(Hons)Cl, (Hons)SLD David T.R. Austin, DPhil, MInstP, CPhys. David C. Champeney
{"title":"测量水凝胶交流电导电性的一种技术","authors":"BSc, GrandInstP, FBDO(Hons)Cl, (Hons)SLD David T.R. Austin, DPhil, MInstP, CPhys. David C. Champeney","doi":"10.1016/S0141-7037(95)80022-0","DOIUrl":null,"url":null,"abstract":"<div><p>A technique for measuring the electrical conductivity of hydrogels (range of water contents 38–75%) is described using samples in button form, the aim being to discover the correlations that exist between conductivity and other measurable variables such as water content and oxygen permeability. The technique overcomes the problem of electrode interface impedance by analysing impedance values over a range of frequencies, and the design of the conductivity cell allows effects of compression to be studied. Results so far indicate that reproducible conductivity values are obtained, that the conductivity rises, at an increasing rate, with increase in water content and that there is a correlation between electrical conductivity and permeability.</p></div>","PeriodicalId":100842,"journal":{"name":"Journal of The British Contact Lens Association","volume":"18 4","pages":"Pages 115-118"},"PeriodicalIF":0.0000,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0141-7037(95)80022-0","citationCount":"5","resultStr":"{\"title\":\"A technique for measuring the alternating current electrical conductivity of hydrogels\",\"authors\":\"BSc, GrandInstP, FBDO(Hons)Cl, (Hons)SLD David T.R. Austin, DPhil, MInstP, CPhys. David C. Champeney\",\"doi\":\"10.1016/S0141-7037(95)80022-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A technique for measuring the electrical conductivity of hydrogels (range of water contents 38–75%) is described using samples in button form, the aim being to discover the correlations that exist between conductivity and other measurable variables such as water content and oxygen permeability. The technique overcomes the problem of electrode interface impedance by analysing impedance values over a range of frequencies, and the design of the conductivity cell allows effects of compression to be studied. Results so far indicate that reproducible conductivity values are obtained, that the conductivity rises, at an increasing rate, with increase in water content and that there is a correlation between electrical conductivity and permeability.</p></div>\",\"PeriodicalId\":100842,\"journal\":{\"name\":\"Journal of The British Contact Lens Association\",\"volume\":\"18 4\",\"pages\":\"Pages 115-118\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1995-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S0141-7037(95)80022-0\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of The British Contact Lens Association\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0141703795800220\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of The British Contact Lens Association","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0141703795800220","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A technique for measuring the alternating current electrical conductivity of hydrogels
A technique for measuring the electrical conductivity of hydrogels (range of water contents 38–75%) is described using samples in button form, the aim being to discover the correlations that exist between conductivity and other measurable variables such as water content and oxygen permeability. The technique overcomes the problem of electrode interface impedance by analysing impedance values over a range of frequencies, and the design of the conductivity cell allows effects of compression to be studied. Results so far indicate that reproducible conductivity values are obtained, that the conductivity rises, at an increasing rate, with increase in water content and that there is a correlation between electrical conductivity and permeability.