Instrument includes gallium arsenide light-emitting diode (LED) and silicon phototransistor with infrared filter, all cast in single plastic housing. Housing attached to subject's face with transparent doublesided adhesive tape. LED directs pulses of infrared light to skin, which reflects them to phototransistor. Phototransistor produces signal that is processed by external circuits to yield plot of infrared reflectance with time. External circuits temperature-compensated and respond only to pulsed component of detector output, rejecting those components caused by stray light. Circuits also extract blood-volume pulse amplitude and heart rate.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Photoelectronic Monitor of Motion Sickness


    Contributors:
    Oman, C. M. (author) / Cook, W. J. (author)

    Published in:

    Publication date :

    1986-11-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Motion sickness estimation device, motion sickness reducing device and motion sickness estimation method

    NAKAMURA YUDAI / NAITO MASAHIRO | European Patent Office | 2023

    Free access

    MOTION SICKNESS ESTIMATION DEVICE, MOTION SICKNESS PREVENTION DEVICE, AND MOTION SICKNESS ESTIMATION METHOD

    MURAKAMI TAKUYA / NAKAMURA YUDAI / NAITO MASAHIRO | European Patent Office | 2019

    Free access

    MOTION SICKNESS ESTIMATION DEVICE, MOTION SICKNESS REDUCING DEVICE AND MOTION SICKNESS ESTIMATION METHOD

    NAKAMURA YUDAI / NAITO MASAHIRO | European Patent Office | 2020

    Free access

    Motion sickness estimation device, motion sickness prevention device, and motion sickness estimation method

    MURAKAMI TAKUYA / NAKAMURA YUDAI / NAITO MASAHIRO | European Patent Office | 2020

    Free access

    MOTION SICKNESS ESTIMATING DEVICE, MOTION SICKNESS PREVENTING DEVICE, AND MOTION SICKNESS ESTIMATING METHOD

    MURAKAMI TAKUYA / NAKAMURA YUDAI / NAITO MASAHIRO | European Patent Office | 2018

    Free access