著者
兼安 一成 大塚 和之 瀬戸口 泰弘 中原 毅 園田 茂代 麻生 功
出版者
一般社団法人 電気学会
雑誌
電気学会論文誌. E, センサ・マイクロマシン準部門誌 = The transactions of the Institute of Electrical Engineers of Japan. A publication of Sensors and Micromachines Society (ISSN:13418939)
巻号頁・発行日
vol.118, no.2, pp.119-124, 1998-02
参考文献数
6
被引用文献数
1 3

A CO<sub>2</sub> sensor was set up by using Na<sub>3</sub>Zr<sub>2</sub>Si<sub>2</sub>PO<sub>12</sub> (NASICON) as a solid electrolyte, Li<sub>2</sub>CO<sub>3</sub> as a carbonate phase. The EMF (Electromotive force) was linear to the logarithm of CO<sub>2</sub> concentration and hardly depended on interfering gases by using a zeolite filter. The &Delta; EMF (EMF<sub>Air</sub>-EMF<sub>Gas</sub>) was stable even after the test of unpowered exposure to a high humidity atmosphere. The CO<sub>2</sub> monitor in which the CO<sub>2</sub> concentration is calculated by the &Delta; 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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