The sensor described is based on a Sagnac topology in reflection and uses the properties of its frequency response in order to obtain a self-referenced signal proportional to the measurand signal. In terms of sensitivity the best result was found for K/sub 2//spl ap/0.184 being possible to address the full range of the R parameter. Considering K/sub 2/=0.2 and an off-resonance frequency of 3.25 MHz, a fairly good compromise between sensor sensitivity and sensor linearity is possible.


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    Title :

    Sagnac topology for a self-referencing fiber optic sensor


    Contributors:
    Baptista, J.M. (author) / Santos, J.L. (author) / Lage, A.S. (author)


    Publication date :

    1999-01-01


    Size :

    205963 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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