LASER GAS ANALYZER

PROBLEM TO BE SOLVED: To materialize a laser gas analyzer capable of always keeping an optical axis constant, and carrying out stable measurement, even if thermal deformation and the like occurs in a process operating state.SOLUTION: A laser gas analyzer emits a laser beam 15 into measured gas 1, an...

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Main Authors NANKO TOMOAKI, AKUTSU YUKITSUGU, TAMURA KAZUTO, FUKUNAGA YASUSHI, TAKAMATSU YUKIHIKO
Format Patent
LanguageEnglish
Published 07.06.2012
Subjects
COLORIMETRY
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHYSICS
RADIATION PYROMETRY
TESTING
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Summary:PROBLEM TO BE SOLVED: To materialize a laser gas analyzer capable of always keeping an optical axis constant, and carrying out stable measurement, even if thermal deformation and the like occurs in a process operating state.SOLUTION: A laser gas analyzer emits a laser beam 15 into measured gas 1, and measures gas concentration from light quantity change due to the optical absorption of the laser beam 15. The laser gas analyzer comprises a lens 12 for changing the laser beam 15 emitted from a laser 11 to parallel light, a detector for detecting light quantity after the laser beam 15 emitted from the lens 12 passes through the measured gas 1, an actuator 13 for moving the laser 11 within a moving plane at a focus position of the lens 12, and an actuator control portion 16 for driving the actuator 13 on the basis of a signal from the detector.
Bibliography:Application Number: JP20100257449