J.C. Allen, R. Callis, W. Cary, T. E. Harris, A. Nerem
{"title":"Eight channel-16 bit, bidirectional analog to digital monitoring and control system","authors":"J.C. Allen, R. Callis, W. Cary, T. E. Harris, A. Nerem","doi":"10.1109/FUSION.1991.218715","DOIUrl":null,"url":null,"abstract":"The DIII-D tokamak facility is currently upgrading its electron cyclotron resonance heating system. The new system is based on 110-GHz gyrotrons developed by Varian. As part of this upgrade, the superconducting magnet power supplies were required to be remotely controlled and monitored accurately. The 110-GHz gyrotron superconducting magnet has eight coils, which are energized by current regulating power supplies. An analog-to-digital (A/D) system was designed to allow remote coil current monitoring and power supply programming. The A/D system is an eight channel multiplexed, 16-b, bidirectional, fiber optically linked, A/D telemetry system. Design concerns and tradeoffs are discussed, as are the results of in-system use.<<ETX>>","PeriodicalId":318951,"journal":{"name":"[Proceedings] The 14th IEEE/NPSS Symposium Fusion Engineering","volume":"4 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1991-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"[Proceedings] The 14th IEEE/NPSS Symposium Fusion Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/FUSION.1991.218715","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
The DIII-D tokamak facility is currently upgrading its electron cyclotron resonance heating system. The new system is based on 110-GHz gyrotrons developed by Varian. As part of this upgrade, the superconducting magnet power supplies were required to be remotely controlled and monitored accurately. The 110-GHz gyrotron superconducting magnet has eight coils, which are energized by current regulating power supplies. An analog-to-digital (A/D) system was designed to allow remote coil current monitoring and power supply programming. The A/D system is an eight channel multiplexed, 16-b, bidirectional, fiber optically linked, A/D telemetry system. Design concerns and tradeoffs are discussed, as are the results of in-system use.<>