NDIR法による呼気中のアルコール検出

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2012/07/01

タイトル(英語): Alcohol Detection in Exhaled Air by NDIR Method

著者名: 藤塚　徳夫（（株）豊田中央研究所），米村　正寿（（株）豊田中央研究所），榊原　清美（（株）豊田中央研究所），田口　敏行（（株）豊田中央研究所），脇田　敏裕（（株）豊田中央研究所）

著者名(英語): Norio Fujitsuka (TOYOTA CENTRAL R&D LABS., INC.), Masatoshi Yonemura (TOYOTA CENTRAL R&D LABS., INC.), Kiyomi Sakakibara (TOYOTA CENTRAL R&D LABS., INC.), Toshiyuki Taguchi (TOYOTA CENTRAL R&D LABS., INC.), Toshihiro Wakita (TOYOTA CENTRAL R&D LABS., INC.)

キーワード: NDIR 法，アルコール検出，呼気，量子カスケードレーザー，赤外中空ファイバー　　NDIR method，Alcohol detection，Exhaled air，Quantum cascade laser，Infrared hollow fiber

要約(英語): In recent years, the increase in traffic accidents associated with drunk driving has become a serious social issue. Therefore, there is a need for an in-vehicle system that can detect the fact that the driver is under the influence of alcohol. We thought a method for alcohol detection in the breath of the driver, based on a nondispersive infrared (NDIR) method, is suitable for this system. Since alcohol content in the driver's breath is significantly diluted at the sensor device, it is necessary that the sensor is highly sensitive to detect diluted alcohol. A quantum cascade laser was used to produce highly intense infrared light source. An infrared hollow fiber used in medical treatment was utilized as a gas absorption cell. Since the core of the fiber is hollow, gas is introduced for analyzer. The flexibility of the fiber allowed it to be looped so that 2 m fiber in length could be formed into a compact coil of 29 cm in diameter. It was clarified that the light intensity change of light output from the hollow fiber with ethanol density, and rarefied ethanol as small as 1 ppm in density was detected.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.132 No.7 （2012）

本誌掲載ページ: 219-223 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejsmas/132/7/132_219/_article/-char/ja/