G - Physics – 01 – J
Patent
G - Physics
01
J
73/55
G01J 3/44 (2006.01) G02F 1/21 (2006.01) H01S 3/106 (2006.01)
Patent
CA 1058416
A method and apparatus for spectroscopic gas analysis are provided. Plural beams of monochromatic radiation are directed through gaseous material. A tuning mechanism adjusts the frequency difference between the radiation beams to equal substantially an odd integral submultiple of the frequency difference between adjacent spectral components of the periodic spectrum for a pre- selected constituent of the gaseous material. Radiation scattered by the gaseous material is received by a primary interferometric mechanism adapted to transmit selectively a detectable signal composed of the periodic spectrum. The signal is received by a detecting means which indicates the intensity thereof.
250463
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