Title:
METHOD FOR CALIBRATING AN X-RAY TESTING SYSTEM FOR A TIRE TYPE AND METHOD FOR CHECKING THE POSITION OF CORDS IN A TIRE
Document Type and Number:
WIPO Patent Application WO/2014/114467
Kind Code:
A3
Abstract:
The invention relates to a method for calibrating an x-ray testing system for a tire type, which comprises three components, namely an x-ray tube (1), a cell-like x-ray detector (2) and a manipulator for a tire (3), wherein the manipulator is arranged in such a way that the tire (3) is arranged with the tread (10) thereof between x-ray tube (1) and x-ray detector (2). In the method, one of the components is moved along a travel path from a defined initial position to a defined end position and, during the movement, continuous recording of x-ray images of cords (7) within the tire (3) is carried out at a pre-definable reading rate, wherein the individual cords (7) are tracked by using chronologically successive x-ray images and, by using the total displacement of the cords (7) in the x-ray images, determined from the latter, between the initial position and the end position, and by using the known geometric data, conclusions are drawn about the absolute position of the cords (7) within the tire 3. The invention further relates to a method for checking the position of cords (7) in a tire (3) of a specific tire type in an x-ray testing system following the performance of the calibration method for the tire type in accordance with one of the preceding patent claims, wherein, for the purpose of checking, only one x-ray image of the tire 3 to be checked is recorded in a specific position of the moving component and said x-ray image is compared with the values obtained from the calibration method and, from this, conclusions are drawn about the absolute position of the cord (7) within the tire (3).
Inventors:
MELCHERT JÜRGEN (DE)
BAVENDIEK KLAUS (DE)
BAVENDIEK KLAUS (DE)
Application Number:
PCT/EP2014/000213
Publication Date:
September 18, 2014
Filing Date:
January 28, 2014
Export Citation:
Assignee:
YXLON INT GMBH (DE)
International Classes:
G01M17/02; G01N23/04; G01N23/18
Foreign References:
| EP1867971B1 | 2011-06-15 | |||
| EP0315099A2 | 1989-05-10 | |||
| GB1381302A | 1975-01-22 |
Attorney, Agent or Firm:
DTS MÜNCHEN (St.-Anna-Str. 15, München, DE)
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