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Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
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Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.
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Sensors and Materials
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is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.
Instructions to authors
English 日本語
Instructions for manuscript preparation
English 日本語
Template
English
Publisher
MYU K.K.
Sensors and Materials
1-23-3-303 Sendagi,
Bunkyo-ku, Tokyo 113-0022, Japan
Tel: 81-3-3827-8549
Fax: 81-3-3827-8547
MYU Research, a scientific publisher, seeks a native English-speaking proofreader with a scientific background. B.Sc. or higher degree is desirable. In-office position; work hours negotiable. Call 03-3827-8549 for further information.
MYU Research
(proofreading and recording)
MYU K.K.
(translation service)
The Art of Writing Scientific Papers
(How to write scientific papers)
(Japanese Only)
Sensors and Materials, Volume 23, Number 3 (2011)
Copyright(C) MYU K.K.
Copyright(C) MYU K.K.
|
pp. 147-158
S&M834 Research Paper https://doi.org/10.18494/SAM.2011.681 Published: May 13, 2011 Nondispersive Infrared Ray CH4 Gas Sensor Using Focused Infrared Beam Structures [PDF] JongSeon Park and SeungHwan Yi (Received February 2, 2010; Accepted July 30, 2010) Keywords: nondispersive infrared ray (NDIR) gas sensor, optical cavity, concave mirror structure, methane gas sensor, thermopile detector
We propose a concave optical cavity structure for use in a high-performance nondispersive infrared ray (NDIR) methane gas sensor module. By using a concave mirror structure, the maximum output voltage and voltage difference between 0 and 9,500 ppm increased by more than 160% compared with using a vertical mirror structure. The output voltage dependence of the thermopile location was tested in the case of a concave mirror structure. The output voltage increased from 2.75 to 3.63 V with the thermopile detector placed at distances of 2 and 3 mm from the reference position. It was found that the output voltage of the sensor decreased by more than 45% from 2.16 to 1.18 V after three years of operation in the case of the vertical mirror structure.
Corresponding author: SeungHwan Yi Cite this article JongSeon Park and SeungHwan Yi, Nondispersive Infrared Ray CH4 Gas Sensor Using Focused Infrared Beam Structures, Sens. Mater., Vol. 23, No. 3, 2011, p. 147-158. |
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