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    • 9. 发明专利
    • DEVICE FOR MEASURING GAS-INFLATION TYPE ENERGY
    • JPH05172626A
    • 1993-07-09
    • JP35565491
    • 1991-12-24
    • JASCO CORP
    • KIMURA SHIGEYUKIMIYAZAKI SUNAOMASUJIMA TSUTOMU
    • G01J1/02G01J1/42G01J5/38G01J5/42
    • PURPOSE:To obtain a gas-inflation type energy-measuring device with a high measuring accuracy. CONSTITUTION:A title item is provided with a small chamber 2 which incorporates an absorption film 3 for absorbing an electromagnetic wave energy and a flexible film 8 which is fitted so that it covers an opening formed on the other end face of the small chamber and an amount of inflation of the flexible film changes according to an amount of energy of electromagnetic wave which is absorbed by the above absorption film. A device which detects an amount of inflation of the flexible film consists of a light source 16 which casts light to the flexible film, a polarization interference meter 5 which is placed between the light source and the flexible film, and then an analyzer 21 and a photoelectric detector 22 which detect light intensity according to a polarization angle of the interference light (linear polarization) which is emitted from the polarization interference meter. Then, normal rays O and abnormal rays E which are separated once are shed to a central part (inflation) of a reflection mirror 8a which is provided at the flexible film and a difference is generated in light intensity of both rays according to an amount of inflation.