{"title":"利用红外激光器高精度测量MHD燃烧等离子体电导率","authors":"浩典 中牟田, 益田 光治, 渡辺 征夫, 池上 知顕, 赤崎 正則","doi":"10.15017/17696","DOIUrl":null,"url":null,"abstract":"The electrical conductivity is one of the most important parameters governing the performance of an MHD power generator. The far-infrared laser has offered a powerful diagnostic tool for measuring this quantity. The conductivity of seeded flame is obtained by measuring the transmissivity of the FIR laser beam through a flame. However, care should be taken for the transmissivity measurement because the laser beam is refracrted and expands in the flame due to the electrons. In the present paper, a method involving integrating beam intensity profiles is suggested to account for this effect. The measured conductivity with this correction agrees very well with the theoretical calculation.","PeriodicalId":11722,"journal":{"name":"Engineering sciences reports, Kyushu University","volume":"47 1","pages":"211-215"},"PeriodicalIF":0.0000,"publicationDate":"1988-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"赤外線レーザによる MHD 燃焼プラズマ導電率の高精度測定\",\"authors\":\"浩典 中牟田, 益田 光治, 渡辺 征夫, 池上 知顕, 赤崎 正則\",\"doi\":\"10.15017/17696\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The electrical conductivity is one of the most important parameters governing the performance of an MHD power generator. The far-infrared laser has offered a powerful diagnostic tool for measuring this quantity. The conductivity of seeded flame is obtained by measuring the transmissivity of the FIR laser beam through a flame. However, care should be taken for the transmissivity measurement because the laser beam is refracrted and expands in the flame due to the electrons. In the present paper, a method involving integrating beam intensity profiles is suggested to account for this effect. The measured conductivity with this correction agrees very well with the theoretical calculation.\",\"PeriodicalId\":11722,\"journal\":{\"name\":\"Engineering sciences reports, Kyushu University\",\"volume\":\"47 1\",\"pages\":\"211-215\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1988-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Engineering sciences reports, Kyushu University\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.15017/17696\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Engineering sciences reports, Kyushu University","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15017/17696","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The electrical conductivity is one of the most important parameters governing the performance of an MHD power generator. The far-infrared laser has offered a powerful diagnostic tool for measuring this quantity. The conductivity of seeded flame is obtained by measuring the transmissivity of the FIR laser beam through a flame. However, care should be taken for the transmissivity measurement because the laser beam is refracrted and expands in the flame due to the electrons. In the present paper, a method involving integrating beam intensity profiles is suggested to account for this effect. The measured conductivity with this correction agrees very well with the theoretical calculation.
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