NDIR NDIR ANALYZER HAVING A HELICAL OPTICAL PATH AND MEASUREMENT METHOD USING THE ANALYZER

摘要

According to the present invention, an NDIR analyzer measures the concentration of various gases contained in the air, and comprises: an analyzer body having a gas inlet formed on a portion thereof and a gas outlet formed in response to the gas inlet; an analysis chamber connected to the gas inlet and the gas outlet in the analyzer body and installed to provide a space in which the concentration of inflow gas can be measured; an infrared light source installed on a portion of the analysis chamber to emit an infrared light into the analysis chamber; a detector installed on a portion of the analysis chamber to measure the wavelength of gas flowing into the analysis chamber by an infrared light emitted by the infrared light source; and a controller installed on a portion of the analyzer body and connected to the infrared light source to control operations of the infrared light source and the detector. The analysis chamber is manufactured in a cylindrical or a polygonal pipe shape, and the inner surface of the analysis chamber is mirror-coated to refract or reflect the infrared light emitted by the infrared light source to guide a helical optical path of the infrared light.