Method of calibrating a dispenser
AssigneeIllinois Tool Works Inc.
InventorsScott A. Reid, Thomas J. Karlinski, Jonathan Joel Bloom, Thomas C. Prentice
Life of this patent
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Abstract
A method is used to identify and compensate for errors created by changes in the relative positions of a deposition unit and a vision system of a dispenser. The method includes calibrating the vision system, dispensing a pattern of features over a working area, moving the vision system over a deposition location to locate a deposition, obtaining an image of the deposition, tagging data associated with the image, calculating a relative distance between the deposition unit and the vision system, storing correction data with spatial location in a file for later use, and using the stored data to make small corrections prior to dispensing additional material.
Claims17
A method used to identify and compensate for errors created by changes in the relative positions of a deposition unit and a vision system of a dispenser, the method comprising:
- calibrating the vision system;
- dispensing a pattern of features over a working area;
- moving the vision system over a deposition location to locate a deposition;
- obtaining an image of the deposition;
- tagging data associated with the image;
- calculating a relative distance between the deposition unit and the vision system;
- storing correction data with spatial location in a file for later use;
- and
- using the stored data to make small corrections prior to dispensing additional material.
A method used to identify and compensate for errors created by changes in the relative positions of a deposition unit and a vision system of a dispenser, the method comprising:
- calibrating the vision system;
- temporarily fixing a camera on a deposition unit;
- moving a camera at a deposition unit location to the same location as the vision system was calibrated;
- obtaining an image of same standard which the vision system was calibrated to;
- tagging data associated with the image;
- calculating a relative distance between the deposition unit and the vision system;
- storing correction data with spatial location in a file for later use;
- and
- using the stored data to make corrections prior to dispensing additional material.
Dependencies are inferred from the claim text.