Method and device for calibrating a measuring system

Details Method and device for calibrating a measuring system Method and device for calibrating a measuring system

2007-02-20

2007-02-20

Pham, Hoa Q. (Department: 2877)

Optics: measuring and testing

Position or displacement

C356S243100, C702S104000

Reexamination Certificate

active

10713325

ABSTRACT:
A measuring system including a measuring device with a laser tracker and an opto-electronic sensor having fixed positions relative to one another and an auxiliary measuring tool with a reflector and at least three light spots, is calibrated. The auxiliary measuring tool is rigidly coupled with an arrangement of auxiliary reflectors and is moved around at least two different rotation axes. Reflector and auxiliary reflectors are registered by the laser tracker and the light spots are registered by the opto-electronic sensor. From the data of the laser tracker, positions and orientations of the reflector arrangement relative to the laser tracker and from the data of the opto-electronic sensor, positions and orientations of the light spot arrangement relative to the opto-electronic sensor are calculated and the two rotation axes relative to the reflector arrangement and the light spot arrangement are calculated. Calibration data are calculated by equating corresponding rotation axes.

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