Spatial recognition of a superconducting quantum interference devices nondestructive evaluation system using a small room-temperature probe

Jen-Je Chieh, I. Sheng Lin, Shieh-Yueh Yang, Herng-Er Horng, Chin Yih Hong, Hong-Chang Yang

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    A superconducting-qantum-interference-device (SQUID) nondestructive evaluation (NDE) system using a small room-temperature probe is developed for active scanning rather than for a massive movement occurring in a traditional SQUID NDE system. The small roomtemperature probe is composed of a quadruple excitation coil and a double D-shaped pickup coil. It is connected to the input coil surrounding a high-Tc rf SQUID, immersed in liquid nitrogen, and shielded by a shielding can. Beyond the NDE function, the SQUID NDE scheme has spatial recognition functions, including the detection of the orientation and depth of a narrow line crack using different parameters, and the scanning of images of large objects with arbitrary shapes. Furthermore, the spatial sensitivity, limited by the size of the probe, reaches up to only 7 μm in the aspect of crack widths and 1mm in the aspect of spatial intervals for precision NDE on a printed circuit board.

    Original languageEnglish
    Article number126506
    JournalJapanese Journal of Applied Physics
    Volume48
    Issue number12
    DOIs
    Publication statusPublished - 2009 Dec 1

    Fingerprint

    temperature probes
    SQUIDs
    interference
    evaluation
    room temperature
    coils
    Cracks
    Scanning
    Function evaluation
    Pickups
    Liquid nitrogen
    Printed circuit boards
    Shielding
    Temperature
    cracks
    scanning
    probes
    printed circuits
    circuit boards
    liquid nitrogen

    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy(all)

    Cite this

    Spatial recognition of a superconducting quantum interference devices nondestructive evaluation system using a small room-temperature probe. / Chieh, Jen-Je; Lin, I. Sheng; Yang, Shieh-Yueh; Horng, Herng-Er; Hong, Chin Yih; Yang, Hong-Chang.

    In: Japanese Journal of Applied Physics, Vol. 48, No. 12, 126506, 01.12.2009.

    Research output: Contribution to journalArticle

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