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    • 3. 发明专利
    • COMPENSATING DEVICE FOR AUTOMATIC RUNNING WATER TYPE GAS CALORIMETER
    • JPS5716342A
    • 1982-01-27
    • JP9002280
    • 1980-07-03
    • TOA NENRYO KOGYO KK
    • AOKI AKIRANAKAYAMA KIYOUICHI
    • G01N25/40G01N25/46
    • PURPOSE:To enable the compensation of effects caused by the atmospheric pressure fluctuation and the sample gas temperature change, by varying the sample gas temperature in proportion to the atmospheric pressure fluctuation, to compensate the variation of indicated value from atmospheric pressure fluctuation. CONSTITUTION:Sample gas is fed into a calorimeter 2 for burning after it is heated to the same temperature as that of the circulating water at the circulating water- sample gas heat exchange stations 28 and 30. On the other hand, water in a water tank 14 is fed to the calorimeter 2 through a water gauge 16 and then the heated water returns to the water tank 14 by means of a water circulating pump 24. An absolute pressrue transmitter 104 detects the pressure variation when the atmospheric pressure increases and the variation of the transmission signal P from it increases the prescribed value of a temperature requlator 102. Accordingly, output S of the regulator 102 changes to shut a regulator value 112 off and the amount of the cooling water decreases so that the temperature of the circulating water is raised. By this configuration, highly acculate and reliable measurement can be effected.