空調用固体電解質型二酸化炭素センサの開発

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タイトル別名
  • A Carbon Dioxide Gas Sensor Based on Solid Electrolyte for Air Quality Control
  • クウチョウヨウ コタイ デンカイシツガタ 2サンカタンソ センサ ノ カイハツ

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A CO2 sensor was set up by using Na3Zr2Si2PO12 (NASICON) as a solid electrolyte, Li2CO3 as a carbonate phase. The EMF (Electromotive force) was linear to the logarithm of CO2 concentration and hardly depended on interfering gases by using a zeolite filter. The Δ EMF (EMFAir-EMFGas) was stable even after the test of unpowered exposure to a high humidity atmosphere. The CO2 monitor in which the CO2 concentration is calculated by the Δ EMF using a new renovating system of the standard EMF was developed as a monitor for air quality control. The output of the monitor indicated a good agreement with that of the usual NDIR analyzer at the field-test in the office.

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