US 2026/0140065 A1Published application

Apparatus for the inspection of a circular elongated element

AssigneeSchott AG

InventorArmin Eisner

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Abstract

A method for determining an axial run out of a circular elongated element includes: providing a circular elongated element by a providing unit; illuminating a first end of the circular elongated element; acquiring one or more images of the first end of the circular elongated element with a camera, an angle α being between a centerline of the camera and a plane perpendicular to a rotation axis of an ideal circular elongated element is more than 0° and less than 90°; determining at least a part of a circumference of the first end in each of the one or more images to obtain a determined at least a part of the circumference of the first end; and comparing the determined at least a part of the circumference of the first end with at least a part of an ellipse to determine the axial run out of the first end.

Claims18

Dependent claims

A method for determining an axial run out of a circular elongated element, comprising:

providing a circular elongated element by a providing unit, the circular elongated element comprising:
a first end;
a cylindrical portion defining an outer diameter of the circular elongated element and a rotation axis of the circular elongated element;
and
a second end;
illuminating the first end of the circular elongated element with a light source of a light emitting unit;
acquiring one or more images of the first end of the circular elongated element with a camera of a light receiving unit, wherein an angle α between a centerline of the camera and a plane perpendicular to a rotation axis of an ideal circular elongated element is more than 0° and less than 90°;
determining at least a part of a circumference of the first end of the circular elongated element in each of the one or more images to obtain a determined at least a part of the circumference of the first end of the circular elongated element;
and
comparing the determined at least a part of the circumference of the first end of the circular elongated element with at least a part of an ellipse to determine the axial run out of the first end of the circular elongated element.

7 more elements

A system for determining an axial run out of a circular elongated element, the system comprising:

a providing unit configured for providing a circular elongated element, the circular elongated element comprising:
a first end;
a cylindrical portion defining:
an outer diameter of the circular elongated element and a rotation axis of the circular elongated element;
and
a second end;
a light emitting unit comprising a light source configured for illuminating the first end of the circular elongated element;
a light receiving unit comprising a camera configured for acquiring one or more images of the first end of the circular elongated element, wherein an angle between a centerline of the camera and a plane perpendicular to a rotation axis of an ideal circular elongated element is more than 0° and less than 90°;
and
a computer unit configured for performing the following:
determining at least a part of a circumference of the first end of the circular elongated element in each of the one or more images to obtain a determined at least a part of the circumference of the first end of the circular elongated element;
and
comparing the determined at least a part of the circumference of the first end of the circular elongated element with at least a part of an ellipse to determine the axial run out of the first end of the circular elongated element.

10 more elements

Dependencies are inferred from the claim text.