This paper describes and evaluates the continued development of a prototype vibration-powered, wireless sensor for use in condition based maintenance (CBM) applications. To reduce installation and maintenance costs, the CBM industry is turning interest increasingly toward wireless, self-powered sensors, but a major impediment to more widespread implementation has been a lack of sensors that can scavenge enough energy to operate as well as their battery or wall-powered equivalents. The sensor described in this paper solves that problem by implementing low-power electronics and improved energy scavenging technology. Developed by RLW, Inc. of State College, PA, the S/sup 5/NAP/spl trade/ sensor runs off power scavenged from the ambient vibrations of the platform to which it is attached. It acquires temperature and acceleration measurements and communicates them wirelessly via a radio. It runs indefinitely, reporting its temperature and acceleration every fifteen minutes, if vibration levels of the machine to which it is mounted are 0.065 g RMS or greater at the internal generator's resonant frequency (50 and 60 Hz described in this testing). Upon cessation of input vibration energy for power, the S/sup 5/NAP/spl trade/ uses up remaining available energy before going to sleep until energy is again available at a future time.


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    Titel :

    Development of a vibration-powered wireless temperature sensor and accelerometer for health monitoring


    Beteiligte:
    George, S. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.01.2006


    Format / Umfang :

    578394 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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