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

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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 (EMF_Air-EMF_Gas) 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.