Robotic compensation systems
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United States of America Patent
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Feb 11, 1986
Grant Date -
N/A
app pub date -
Jan 28, 1983
filing date -
Jan 28, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Optical compensation systems are provided which compensate for deflections of the articulated sensor arm of a robotic inspection apparatus such as are produced under load. A light source located at the distal end of the arm produces a light zone, such as a 'spot', which is coupled through the pivot joints to an electro-optical detector array or other light position sensor. Coupling through the joints is provided by fiber optic bundles which extend through the joints and whose ends are supported centrally within the arm sections to respectively pick up and transmit the detected 'spot'. The positional information from the detector is used to upgrade the positional data provided by optical encoders located at the joints.
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