Method and device for measuring the centricity of a conductor in an insulating casing
AssigneeSikora AG
InventorsHARALD SIKORA, KLAUS BREMER
Life of this patent
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Abstract
A method for measuring the centricity of a conductor in an insulating casing, in which the string formed by the conductor with its insulating casing is moved along a conveying direction. A device for measuring the centricity of a conductor in an insulating casing includes an inductive measuring apparatus, first and second optical measuring apparatus and an evaluation apparatus.
Claims16
A method for measuring the centricity of a conductor in an insulating casing, in which the string (28) formed by the conductor with its insulating casing is moved along a conveying direction (14), comprising the steps:
- in an inductive measuring plane, the position of the conductor is determined by means of an inductive measuring apparatus,
- in a first optical measuring plane, which lies in the conveying direction (14) of the string (28) in front of the inductive measuring plane, the position of the string (28) is determined by means of at least one first optical measuring apparatus (16),
- in a second optical measuring plane, which lies in the conveying direction (14) of the string (28) behind the inductive measuring plane, the position of the string (28) is determined by means of at least one second optical measuring apparatus (18),
- the positions of the string (28) determined in the first and second optical measuring plane are correlated such that a position of the string (28) results in the inductive measuring plane and
- the centricity of the conductor in the insulating casing is determined from this resulting position of the string (28) in the inductive measuring plane and from the position of the conductor determined in the inductive measuring plane,
- wherein a spatial resolution optical measurement takes place in the first optical measuring plane and/or in the second optical measuring plane such that a sloping position and/or a curvature of the string (28) with respect to the conveying direction (14), in particular in the first optical measuring plane and/or in the second optical measuring plane, is identified, wherein such a sloping position and/or curvature is taken into consideration during the determination of the centricity of the conductor in the insulating casing.
A device for measuring the centricity of a conductor in an insulating casing, in which the string (28) formed by the conductor with its insulating casing is moved along a conveying direction (14), comprising:
- an inductive measuring apparatus arranged in an inductive measuring plane for determining the position of the conductor in the inductive measuring plane,
- at least one first optical measuring apparatus (16) arranged in a first optical measuring plane, which lies in the conveying direction (14) of the string in front of the inductive measuring plane, for determining the position of the string (28) in the first optical measuring plane,
- at least one second optical measuring apparatus (18) arranged in a second optical measuring plane, which lies in the conveying direction (14) of the string (28) behind the inductive measuring plane, for determining the position of the string (28) in the second optical measuring plane,
- an evaluation apparatus (20), which is designed to correlate the positions of the string (28) determined in the first and second optical measuring plane such that a position of the string (28) results in the inductive measuring plane and to determine the centricity of the conductor in the insulating casing from this resulting position of the string (28) in the inductive measuring plane and from the position of the conductor determined in the inductive measuring plane,
- wherein the at least one first optical measuring apparatus (16) and/or the at least one second optical measuring apparatus (18) are designed to perform a spatial resolution optical measurement in the first optical measuring plane and/or in the second optical measuring plane such that a sloping position and/or a curvature of the string (28) with respect to the conveying direction (14), in particular in the first optical measuring plane and/or in the second optical measuring plane, is identified and wherein the evaluation apparatus (20) is further designed to take such a sloping position and/or curvature into consideration during the determination of the centricity of the conductor in the insulating casing.
Dependencies are inferred from the claim text.