Development of 850 MPa Type Internally Heated Gas Pressure Vessel

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  • ―超高圧流体反応―850 MPa内熱式ガス圧装置の開発
  • 850 MPa内熱式ガス圧装置の開発
  • 850 MPa ナイ ネツシキ ガスアツ ソウチ ノ カイハツ

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Abstract

An 850 MPa type internally-heated gas pressure vessel, which adopts a double-stage compression system, was newly installed at the Tokyo Institute of Technology. At second compressing stage of this instrument, pressure gauge is difficult to use and pressure is estimated from the loaded oil pressure. In order to acquire reliable pressure conditions, a manganin string was placed in the sample chamber and its electrical resistance was measured as a pressure sensor. By using this technique, uncertainty of pressure value for the sample chamber is decreased to a few MPa.

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