Testing of Thermal Imagers for Nondestructive Thermal Testing Applications

    Volume 28, Issue 5 (September 2000)

    ISSN: 0090-3973


    Page Count: 8

    Chrzanowski, K
    Military University of Technology, Warsaw,

    Fischer, J
    Physikalisch-Technische Bundesanstalt, Berlin,

    Gutschwager, B
    Physikalisch-Technische Bundesanstalt, Berlin,

    Wrona, W
    National Academy of Defense, Warsaw,

    (Received 8 September 1999; accepted 7 June 2000)


    One of the important areas of application of commercial thermal imagers is nondestructive thermal testing. An analysis of two standards published by the American Society for Testing and Materials describing measurement procedures of the minimum resolvable temperature difference (MRTD) and the minimum detectable temperature difference (MDTD) was made in this paper. It was shown that in the case of modern thermal imagers, the measurement results of these parameters carried out according to the ASTM recommendations may be unreliable. Proposals to update the standards and to enable accurate measurement of the parameters mentioned above are presented. A laboratory setup for measurement of the MRTD and the MDTD that fulfills requirements of the proposals is described. Measurement results of the parameters for a modern commercial imager according to updated procedures are presented.

    Erratum to this paper appears in 28(6).

    Paper ID: JTE12127J

    DOI: 10.1520/JTE12127J

    ASTM International is a member of CrossRef.

    Title Testing of Thermal Imagers for Nondestructive Thermal Testing Applications
    Symposium , 0000-00-00
    Committee C16