{"title":"辫状和卷曲屏蔽传输阻抗的测量","authors":"J. Hofstra, M. Dinallo, L. Hoeft","doi":"10.1109/ISEMC.1982.7567797","DOIUrl":null,"url":null,"abstract":"The surface transfer impedance of 36 samples of cable shields were measured from 1 kHz to 100 MHz. Measurements were made in 1 and 6 meter long quad raxial test fixtures using computer controlled net work analyzers. The apparatus was calibrated using shields made from copper pipes, having a known resis tance and leakage mutual inductance. These calibra tion shields also allowed the noise floor of the system to be measured. The cable shield samples included tubular and machine braids, magnetic and non-magnetic convolutes, tape wound aluminum and stainless steel conduits, metal tapes and combina tions. All samples used a 3/4\" diameter core made up of 19 shielded twisted pairs. The convolute and conduit samples were 1-1/4\" in diameter.","PeriodicalId":280076,"journal":{"name":"1982 IEEE International Symposium on Electromagnetic Compatibility","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Measured Transfer Impedance of Braid and Convoluted Shields\",\"authors\":\"J. Hofstra, M. Dinallo, L. Hoeft\",\"doi\":\"10.1109/ISEMC.1982.7567797\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The surface transfer impedance of 36 samples of cable shields were measured from 1 kHz to 100 MHz. Measurements were made in 1 and 6 meter long quad raxial test fixtures using computer controlled net work analyzers. The apparatus was calibrated using shields made from copper pipes, having a known resis tance and leakage mutual inductance. These calibra tion shields also allowed the noise floor of the system to be measured. The cable shield samples included tubular and machine braids, magnetic and non-magnetic convolutes, tape wound aluminum and stainless steel conduits, metal tapes and combina tions. All samples used a 3/4\\\" diameter core made up of 19 shielded twisted pairs. The convolute and conduit samples were 1-1/4\\\" in diameter.\",\"PeriodicalId\":280076,\"journal\":{\"name\":\"1982 IEEE International Symposium on Electromagnetic Compatibility\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1982-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"1982 IEEE International Symposium on Electromagnetic Compatibility\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISEMC.1982.7567797\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"1982 IEEE International Symposium on Electromagnetic Compatibility","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISEMC.1982.7567797","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Measured Transfer Impedance of Braid and Convoluted Shields
The surface transfer impedance of 36 samples of cable shields were measured from 1 kHz to 100 MHz. Measurements were made in 1 and 6 meter long quad raxial test fixtures using computer controlled net work analyzers. The apparatus was calibrated using shields made from copper pipes, having a known resis tance and leakage mutual inductance. These calibra tion shields also allowed the noise floor of the system to be measured. The cable shield samples included tubular and machine braids, magnetic and non-magnetic convolutes, tape wound aluminum and stainless steel conduits, metal tapes and combina tions. All samples used a 3/4" diameter core made up of 19 shielded twisted pairs. The convolute and conduit samples were 1-1/4" in diameter.
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