A patented technique for remotely measuring layer thickness of transparent fluids and solids on surfaces has been incorporated into Canpolar East's Smart Camera (VE-262) and been validated for measurement of ice layer thickness. This application addresses the need for reliable detection of icing on aircraft. The thickness measurement technique is carried out by directing a laser beam at the surface with the ice layer A pattern of illumination appears on the surface as a result of internal reflection of the laser light within the ice layer. The layer thickness is calculated by a simple formula involving the size of the image pattern and the refractive index of layer material. The system was tested using a wedge-shaped ice sample with a maximum thickness of about 10 mm. The data indicated a system measurement accuracy of +/- 0.1 mm.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Machine vision for ice layer thickness measurements


    Additional title:

    Optische Eisschichtdickenmessung mit digitaler Bildverarbeitung


    Contributors:
    Hermanto, I. (author) / Gagnon, R.E. (author)


    Publication date :

    1996


    Size :

    7 Seiten, 6 Bilder, 1 Tabelle, 4 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Machine vision for ice layer thickness measurements

    Hermanto, I. / Hearn, P. / Gagnon, R.E. | Tema Archive | 1997



    Hull thickness measurements

    Online Contents | 2000


    Machine vision method for small feature measurements [5606-22]

    Harding, K. G. / Tang, S.-G. G. / Society of Photo-optical Instrumentation Engineers | British Library Conference Proceedings | 2004