X-ray measuring method and x-ray measuring device for measuring a strand
AssigneeCiTEX Holding GmbH
InventorsArno NEUMEISTER, Christoph HERRMANN
Life of this patent
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Abstract
The present disclosure relates to an X-ray measuring method and an X-ray measuring device for measuring a strand.
Claims30
An X-ray measuring method for measuring a strand, comprising the following steps:
- providing an X-ray measuring device, which comprises an X-ray source, an X-ray detector and a measuring space formed in-between them,
- emitting X-rays from the X-ray source through the measuring space and the strand in a measuring plane along a measuring axis and detecting the X-rays passing through the strand by means of the X-ray detector, which comprises at least one detector row of measurement channels,
- generating a transmission curve as measuring signal by means of the X-ray detector, where the transmission curve expresses detected values of the intensity of the measuring channels,
- storing the transmission curve as at least one reference transmission curve,
- carrying out at least one further, current X-ray measurement by means of the X-ray source and the X-ray detector, and generating a current transmission curve,
- comparing the current transmission curve with at least the reference transmission curve, whereby all measuring channels are compared,
- evaluating the comparison and determining whether a fault is present in the strand.
The X-ray measuring method of 13, wherein the multiple measuring axes include one or more of the following axes:
- multiple static measuring axes arranged one behind another in the transport direction or an adjustment direction,
- multiple static measuring axes arranged in the circumferential direction around the transport direction
- multiple static measuring axes arranged in the circumferential direction around an axis of symmetry of the measuring space,
- multiple measuring axes inclined at different angles in relation to the transport direction
- additional measuring axes inclined at different angles in relation to the transport direction for enhancing contrast.
An X-ray measuring device, comprising at least one X-ray source for emitting X-rays along a measuring axis, and an X-ray detector, wherein between the X-ray source and the X-ray detector a measuring space for receiving a strand transported in a transport direction is formed, further comprising an evaluator means including a memory, the evaluator means being adapted to receive transmission curves detected by the X-ray detector and to store the transmission curves as reference transmission curves directly or after processing, and the evaluator means being configured to compare current transmission curves of the X-ray detector with the at least one reference transmission curve and to use the comparison to carry out an evaluation as to whether a fault is present in the current transmission curve or not.
Dependencies are inferred from the claim text.