Robotic compensation systems

Details Robotic compensation systems Robotic compensation systems

1983-01-28

1986-02-11

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250561, 901 47, G01D 534

Patent

active

045700656

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.

REFERENCES:
patent: 3476481 (1969-11-01), Lemelson
patent: 3715599 (1973-02-01), Marcy
patent: 3921445 (1975-11-01), Hill et al.
patent: 4405231 (1983-09-01), Shemyakin et al.
patent: 4452506 (1984-06-01), Reeve et al.
patent: 4466189 (1984-08-01), Tobin

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