Optical pattern tracing system with improved manual control

Details Optical pattern tracing system with improved manual control Optical pattern tracing system with improved manual control

1981-09-15

1984-12-04

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

361292, 361298, G05B 100, H01G 506

Patent

active

044866542

ABSTRACT:
An optical pattern tracing system of the type having a tracing head with a scanner that projects a photocell onto a pattern-line with an improved manual resolver for providing control signals to drive the tracing head in an approach direction toward the pattern-line. The manual resolver is a capacitive resolver constructed of foil elements and an angularly adjustable coupling disc mounted directly on a printed circuit board that also carries much of the other control circuitry for the tracing system.

REFERENCES:
patent: 3306104 (1967-02-01), Corcoran
patent: 3337789 (1967-08-01), Ono et al.
patent: 3704372 (1972-11-01), Parker et al.
patent: 4371782 (1983-02-01), Brouwer

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