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US 8,175,842 B2Granted
Method and system for measuring a component
AssigneeROLLS-ROYCE plc
InventorsMitchel Cameron, Hang W Lung, Nicholas B Orchard, Michael J S Gooder
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Abstract
A method for measuring the profile of a component in the region of an edge of the component comprises the following steps: determining the position of an edge point of the component; defining a center line for the component in the region of the edge; and measuring at least one dimension of the component with reference to the center line.
Claims14
A method for measuring the profile of a component in the region of an edge of the component, the method comprising the following steps:
- a) determining the position of an edge point of the component, wherein step a) comprises:
- aa) measuring the periphery of the component in the region of the edge;
- ab) producing two co-ordinate datasets from the measurements, one dataset being produced from the measurements falling to one side of the edge and the other dataset being produced from the measurements falling to the other side of the edge;
- ac) fitting a best-fit curve to each co-ordinate dataset;
- ad) determining the intersection point of the two curves;
- ae) defining this intersection point to be the edge point;
- b) defining a centre line for the component in the region of the edge;
- and
- c) measuring at least one dimension of the component with reference to the centre line.
6 more elements
Dependencies are inferred from the claim text.