A novel fiber Bragg grating based palladium tube sensor was designed for hydrogen leakage detection in aerospace vehicles. The sensor fabrication method was developed and the sensor response was characterized in terms of total wavelength change, response time and degassing ability. Several factors that influence the sensor performance, including the tube thickness, purging temperature, purging gas, hydrogen concentration, and operation temperature, were studied. The sensor response was improved by reducing the thickness of the palladium tube to around 33 mu m, optimizing the operation temperature to 95 degrees C, and thoroughly degassing the sensor in nitrogen at 95 degrees C for 4 hours. At these conditions, the total wavelength change was about 0.6 nm, the response time (the time to reach a 0.05 nm wavelength change) was about 2 minutes for the four-hour 4% hydrogen tests.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Characterization of a fiber Bragg grating (FBG) based palladium tube hydrogen sensor


    Contributors:
    Tang, Yiwu (author) / Peng, Y.T. (author) / Sirkis, J.S. (author) / Childers, B.A. (author) / Moore, J.P. (author) / Melvin, L.D. (author)


    Publication date :

    1999


    Size :

    9 Seiten, 20 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Characterization of a fiber Bragg grating (FBG)-based palladium tube hydrogen sensor

    Tang, Y. / Peng, Y. T. / Sirkis, J. S. et al. | British Library Conference Proceedings | 1999



    Fiber Bragg-grating-based Laser sensor [2509-07]

    Wallace, C. G. / Othonos, A. / Uttamchandani, D. G. et al. | British Library Conference Proceedings | 1995


    Chirped Fiber-Optic Bragg Grating Interrogator in a Multiplexed Bragg Grating Sensor Configuration

    Chtcherbakov, A. A. / Swart, P. L. | British Library Online Contents | 2004


    A Pressure Sensor Using Fiber Bragg Grating

    Tjin, S. C. / Hao, J. / Lam, Y.-Z. et al. | British Library Online Contents | 2001