LARGE SCALE METROLOGY APPARATUS AND METHOD
First Claim
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1. A system, comprising:
- at least one photo-detecting target configured to be positioned at a first location within a predetermined volume;
a plurality of photo-emitting heads configured to each be positioned at second locations within the predetermined volume, each of the photo-emitting heads configured to generate a rotating fan beam pair;
a master signal generator that generates a reference RF signal that is broadcast to the at least one photo-detecting target; and
a signal processor configured to determine the position of the at least one photo-detecting target within the volume from signals generated by the at least one photo-detecting target in response to the plurality of rotating fan beam pairs.
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Abstract
A metrology system that uses a plurality of photo-detecting targets positioned on the objects to be assembled, a plurality of rotating photo-emitting heads, a master signal generator that generates a reference RF signal, and a signal processor that determines the position of each of the targets from signals generated by each target in response to the photo-emitting heads. During operation, the reference RF signal is broadcast to the rotating photo-emitting heads and the photo-detecting targets. The RF signal is used to determine the azimuth of the heads relative to a zero reference position to a high degree of accuracy.
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26 Claims
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1. A system, comprising:
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at least one photo-detecting target configured to be positioned at a first location within a predetermined volume; a plurality of photo-emitting heads configured to each be positioned at second locations within the predetermined volume, each of the photo-emitting heads configured to generate a rotating fan beam pair; a master signal generator that generates a reference RF signal that is broadcast to the at least one photo-detecting target; and a signal processor configured to determine the position of the at least one photo-detecting target within the volume from signals generated by the at least one photo-detecting target in response to the plurality of rotating fan beam pairs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification