×

Optical profile sensor

  • US 6,205,240 B1
  • Filed: 11/18/1997
  • Issued: 03/20/2001
  • Est. Priority Date: 02/19/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. An apparatus for evaluating a profile of a blade edge in a system having a processor for such evaluation, the edge comprising an edge tip and two edge sides, the apparatus comprising:

  • means for illuminating the blade edge, at a location along the blade, with a light stripe;

    means for capturing an image of each illuminated edge side;

    means for combining the image data, using calibration parameters, to represent the profile of the entire edge, including the tip, said profile being represented by a plurality of data points in a coordinate system, means for providing a profile tolerance band, said profile tolerance band including data points corresponding to the edge tip and two sides;

    means for aligning the profile and said profile tolerance band, said profile including data points from edge sides and an outermost portion of said blade;

    means for providing a plurality of memory locations for storing values, each of said memory locations being associated with a point in the coordinate system;

    means for setting said value stored in each of said memory locations, where those not associated with points of said tolerance band are set to a first value, and those associated with points of said tolerance band are set to a second value; and

    means for determining whether the points of the profile are within said tolerance band by evaluating said value of said memory locations which are associated with points of the profile.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×