G - Physics – 01 – B
Patent
G - Physics
01
B
G01B 11/04 (2006.01) G01B 11/00 (2006.01) G01B 11/02 (2006.01) H04N 7/18 (2006.01)
Patent
CA 2160919
A method for touchless measuring of thickness and width of an object travelling along a straight path, based on the use of CCD video camera and laser. The invention is a unit in accordance with the Figure which, by means of installed cameras, laser(s) and two parabola-shaped mirrors, measures both thickness and width of an object as the centre line thereof passes directly below the width measuring camera, camera 1 in the Figure. The device is intended to be coupled to a computer or PC or PLS. Communicating equipment does not become "stuck", occupied with reading measuring values even if the object to be measured becomes laying at rest within the measuring area. Parabola-shaped mirrors are mounted such that they are parallel in the longitudinal direction, and with the concave and mirror-coated sides angled 90° to each other in the plane of the short sides (short dimensions); further, these are positioned with the longitudinal direction parallel with the transport direction of the object to be measured and above the same, such that light and contrast transitions are mirrored in these and recorded by camera 1. The device may be used for e.g. measuring thickness and width of laterally conveyed timber in adjusting works.
Ridout & Maybee Llp
Rydningen Toni
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