The paper describes a new device; laser alcohol analyzer (LAA); which eliminates the drawbacks of sobriety checking points and allows screening cars or work place for drivers and workers under the influence. The technique uses type III-V distributed feedback tunable diode laser to observe alcohol absorption in the 1.392 pm range. Ethyl alcohol or ethanol (CH/sub 3/CH/sub 2/OH) has strong absorption bands in the 2.74 /spl mu/m, 3.39 /spl mu/m, 7.2 /spl mu/m, 8.05 /spl mu/m, and 9.5 /spl mu/m regions. Strong interference from other gases such as hydrocarbons, H/sub 2/O, CO, and CO/sub 2/ limit the use of these bands. Moreover, these bands are in the mid-infrared region of the spectrum which requires cooling the laser and the detector to cryogenic temperatures that hinders their applications to sobriety checking points. The LAA sensor uses wavelength modulation absorption spectroscopy to monitor alcohol concentration in moving cars at sobriety check point without slowing the traffic (screening mode), or to determine alcohol concentration from a sample of breath extracted from the driver (testing mode).


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Remote sensor to detect alcohol impaired drivers


    Beteiligte:
    Azzazy, M. (Autor:in) / Chau, T. (Autor:in) / Wu, M. (Autor:in) / Tanbun-Ek, T. (Autor:in)


    Erscheinungsdatum :

    01.01.1995


    Format / Umfang :

    176783 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Remote Sensor to Detect Alcohol Impaired Drivers

    IEEE / Lasers and Electro-Optics Society | British Library Conference Proceedings | 1995


    CHARACTERISTICS OF ALCOHOL-IMPAIRED DRIVERS

    WOLFE, ARTHUR C. | SAE Technical Papers | 1975


    Alcohol-impaired drivers detection technology

    Jones, Anthony F. | TIBKAT | 2011


    Characteristics of alcohol- impaired drivers.

    Wolfe,A.C. / University of Michigan, Highway Safety Research Institute | Kraftfahrwesen | 1975


    Reaction times of young alcohol-impaired drivers

    Christoforou, Zoi | Online Contents | 2013