Automatic velocity and position controller for a film processor

Details Automatic velocity and position controller for a film processor Automatic velocity and position controller for a film processor

1980-04-03

1983-05-31

Rubinson, G. Z.

Electricity: motive power systems

Motor-reversing

Armature or primary circuit control

318616, G03D 1300

Patent

active

043858210

ABSTRACT:
An automatic controller for a film processor is characterized by a motor energy signal generator which is responsive to both a position error signal and to a velocity error signal. The motor energy signal is periodically applied to a drive motor for the processor to modify the portion of the available energy transmitted from a source to the motor to restore the actual film position to within a predetermined range of an ideal film position and to restore the actual velocity of the film to within a predetermined range of an ideal film velocity.

REFERENCES:
patent: 3081961 (1963-03-01), Kron
patent: 3623416 (1971-11-01), Anderberg
patent: 3657524 (1972-04-01), Bakke
patent: 3828168 (1974-08-01), O'Callaghan et al.
patent: 3913119 (1975-10-01), Pfeifer
patent: 4057818 (1977-11-01), Gaskell et al.
patent: 4065703 (1977-12-01), Schlicher et al.
patent: 4156569 (1979-11-01), Fasano
patent: 4219765 (1980-08-01), Morsing
patent: 4229684 (1980-10-01), Saglini et al.

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