Method and device for measuring the centricity of a conductor in an insulating casing

摘要

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.

主权项

1. 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.