Fast infrared spectrometer measures atmospheric C0, CH4, and HC1 over range of 1 to 12 ppm. With modifications it could measure other pollutants and use natural light as source. Cell filled with sample to be measured filters out spectral lines of interest. Infrared beam passes through rotating cell holder that produces chopped signals at two frequencies. Difference in signal amplitudes depends on amount of test gas in sample. Signal processing circuitry amplifies and separates test-gas and reference signals.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Fast-response atmospheric-pollutant monitor


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    01.08.1980



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :



    Portable atmospheric pollutant sampler

    YU QINGYOU | Europäisches Patentamt | 2023

    Freier Zugriff

    Atmospheric pollutant underway monitoring vehicle

    MO ZHAOYU / CHEN ZHIMING / LIU HUILIN et al. | Europäisches Patentamt | 2022

    Freier Zugriff

    Atmospheric organic pollutant sampling-enriching method

    LI SHENGHONG / GUAN YAFENG / NING HAIJING | Europäisches Patentamt | 2023

    Freier Zugriff

    Optical systems monitor atmospheric pollutants

    Garifo, L. | British Library Online Contents | 1997