LASER-TYPE GAS ANALYZER

Provided is a laser-type gas analyzer that can measure, with high precision and in use of one single device, the gas concentration of a first gas to be measured in a mid-infrared region, and the gas concentration of a second gas to be measured, in a near-infrared region even in a measurement environ...

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Bibliographic Details
Main Authors TABARU MASAYA, INUI TAKASHI, KOIZUMI KAZUHIRO, KONISHI HIDEYUKI
Format Patent
LanguageEnglish
French
German
Published 14.09.2016
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:Provided is a laser-type gas analyzer that can measure, with high precision and in use of one single device, the gas concentration of a first gas to be measured in a mid-infrared region, and the gas concentration of a second gas to be measured, in a near-infrared region even in a measurement environment where dust and water at a high concentration are present. The laser-type gas analyzer includes: a mid-infrared light reception signal processing and computing unit 22 that calculates a gas concentration of the first gas to be measured on the basis of a mid-infrared light reception signal; a near-infrared light reception signal processing and computing unit 23 that detects, at respective times, the gas concentration of the second gas to be measured, water concentration in a space, and alight amount decrement due to dust, on the basis of near-infrared light reception signal; and a gas concentration correcting unit 24 that corrects the gas concentrations of the first and second gases to be measured using the water concentration and the light amount decrement.
Bibliography:Application Number: EP20130870750