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Magnetic measuring apparatus with sensor guide device and method for installing sensors therein

外国特許コード F070001784
整理番号 F070001784
掲載日 2008年1月18日
出願国 アメリカ合衆国
出願番号 81230497
公報番号 5880588
出願日 平成9年3月5日(1997.3.5)
公報発行日 平成11年3月9日(1999.3.9)
優先権データ
  • 特願1996-128459 (1996.5.23) JP
発明の名称 (英語) Magnetic measuring apparatus with sensor guide device and method for installing sensors therein
発明の概要(英語) Apparatus for measuring weak magnetic fields includes a cryogenic vessel CR having a domed bottom D for accepting a human head, a plurality of magnetic sensor units 10 mounted upright on the inner surface of the bottom D of the cryogenic vessel CR, an interface device 20 for receiving output signals of the magnetic sensor units 10 through respective lead lines 4, a data processor device 30 for analyzing the output signals of the magnetic sensor units 10 to specify magnetic fields spread in the ambient space about the human head and calculating the activity of a brain B from the magnetic fields, and a display device 40 for displaying the brain activity. Each of the magnetic sensor units 10 is fed along its guide line G through a small opening OP of the cryogenic vessel CR and mounted upright on the bottom D. As the opening OP of the cryogenic vessel CR is relatively small, the evaporation loss of a coolant in the cryogenic vessel CR is minimized and the running cost of the apparatus will be decreased.
  • 発明者/出願人(英語)
  • Kado; Hisashi
  • Kanazawa Institute of Technology
国際特許分類(IPC)
米国特許分類/主・副
  • 324/248
  • 505/846
  • 600/409
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