| 摘要 |
1,112,215. Discharge lamps. COMPAGNIE D'ETUDES ET DE REALISATIONS DE CYBERNETIQUE INDUSTRIELLE. 18 Jan., 1967 [15 Feb., 1966], No. 2688/67. Heading H1D. [Also in Division G1] In a continuous gas analyzer, the gas to be analyzed, which may contain CO, CO 2 , and H 2 , is drawn through a capilliary tube 1 by a pump 6 and subjected to a high-frequency electromagnetic field applied between electrodes 9 and 10. Light from the discharge produced is dispersed by an optical system 13 and one or more spectrum bands are measured to determine the concentration of corresponding elements in the gas mixture to be analyzed. The light from the tube 1 may be chopped to assist detection. The electromagnetic field may be applied by a coil wound round the tube 1 instead of by the electrodes 9, 10. A gauge 7 measures the pressure of gas in the enclosure 2 which may be between 0.5 and 3 mm. Hg. |
