Specifications

Publication year: 2013
Pages: 135-139
Language: English
ISSN: 16609336
E-ISSN: 16627482
ISBN-13: 9783037855461
Document type: Conference article (CA)
Conference name: 2012 International Conference on Measurement, Instrumentation and
Automation, ICMIA 2012
Conference date: September 15, 2012 - September 16, 2012
Conference location: Guangzhou, China
Conference code: 95105
Sponsor: Queensland University of Technology; Korea Maritime University; Hong Kong
Industrial Technology Research Centre; Inha University, Korea
Publisher: Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670,
Germany
Abstract: A method of mixed gas quantitative analysis with near infrared spectroscopy (NIR)
is described. A single plane diffraction grating is used in the monochromatic spectrum system. A
quantitative analysis system is designed and constructed according to the parameters of the
monochromator. The narrowband beam testing and spectral scanning experiments with methane
and ethane are carried out. A 10nm narrowband beam is successfully obtained by the
monochromatic system when the entrance slit width is 2mm. And a step-scanning resolution of
the outgoing beam's centre wavelength with 0.1nm can be realized within the spectra of
1.0-1.8μm. The results show that methane and ethane have a maxim characteristic absorption
spectrum respectively with the centre wavelength of 1653nm and 1690nm existing between the
spectra of 1.6-1.8μm, which is consistent with the HITRAN database. Presented approach has a
successful application in online mixed gas monitoring with the characteristics of simple structure
and low cost. © (2013) Trans Tech Publications, Switzerland.
Number of references: 10
Main heading: Diffraction gratings
Controlled terms: Absorption spectra - Absorption spectroscopy - Diffraction -
Electromagnetic wave absorption - Ethane - Flight control systems - Infrared devices
- Methane - Near infrared spectroscopy
Uncontrolled terms: Beam testing - Characteristic absorption - HITRAN database
- Low costs - Mixed gas - Monochromatic spectrum - Narrow bands - Near
Infrared - Simple structures - Slit width - Spectral scanning
Classification code: 711 Electromagnetic Waves - 711.1 Electromagnetic Waves in
Different Media - 731.1 Control Systems - 741 Light, Optics and Optical Devices - 801
Chemistry - 804.1 Organic Compounds
DOI: 10.4028/www.scientific.net/AMM.241-244.135
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
18.
Accession number: 20130515979772