NITROGEN OXIDE CONCENTRATION MEASUREMENT DEVICE
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United States of America Patent
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app pub date -
Sep 10, 2013
filing date -
Mar 11, 2011
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Abandoned
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Abstract
This nitrogen oxide concentration measurement device measures a nitrogen oxide concentration by shining light on a sensor produced by distributing a metal complex of porphyrin or a derivative thereof over a base material, and detecting the amount of light of a specific wavelength, said device comprising a light source that shines light at a nitrogen oxide concentration measurement sensor, a light detector that detects the amount of light of a specific wavelength out of all the light transmitted or reflected by the nitrogen oxide concentration measurement sensor, and a controller that corrects the detection result at the light detector so as to match the amount of light of a specific wavelength outputted from the light detector during exposure to a zero gas to a corrected value.
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