Robotic vision system to locate Z-forms

Details Robotic vision system to locate Z-forms Robotic vision system to locate Z-forms

2005-11-29

2005-11-29

Pham, Hoa Q. (Department: 2877)

Optics: measuring and testing

Position or displacement

C250S559290, C029S798000

Reexamination Certificate

active

06970254

ABSTRACT:
A Z-form position detector useful for ascertaining the position of Z-forms with respect to underlying composite structure. The device comprises an oscillating laser that generates a line projected onto the Z-form and composite structure at an angle. The line appears discontinuous due to the topography of the Z-form and composite structure. For example, the line is discontinuous at the edges of the Z-form. The device further comprises a sensor sensitive to the frequency of the laser. The sensor scans along the line until a discontinuity (i.e., a break in the line) is detected. Since the discontinuity corresponds to the edge of the Z-form, detection of the discontinuity allows the device to ascertain precise coordinates of a point on the edge of the Z-form. The device thus allows Z-pins to be driven into composite structure automatically for savings on time and cost.

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