Johnston, S.F. (1992) Gas monitors employing infrared LEDs. Measurement Science and Technology, 3, pp. 191-195. (doi: 10.1088/0957-0233/3/2/008)
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Abstract
Infrared light emitting diodes (LEOS) can replace the thermal source, bandpass filters and rotating chopper wheel of conventional infrared gas monitors. Their long-term stability, high modulation rate and compact size also provide design advantages. The performance of a family of mid-infrared monitors for measuring carbon dioxide and hydrocarbons is described. Various schemes are outlined for compensating temperature drift, outpullgain fluctuations. changes in cell transparency and mismatch between components.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Johnston, Professor Sean |
Authors: | Johnston, S.F. |
Subjects: | Q Science > QC Physics T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) T Technology > TD Environmental technology. Sanitary engineering T Technology > TP Chemical technology |
College/School: | College of Social Sciences > School of Social & Environmental Sustainability |
Journal Name: | Measurement Science and Technology |
Journal Abbr.: | Meas. Sci. Tech. |
Publisher: | Institute of Physics Publishing |
ISSN: | 0957-0233 |
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