Electricity: motive power systems – Positional servo systems – Digital or numerical systems
Patent
1981-04-03
1983-07-19
Dobeck, B.
Electricity: motive power systems
Positional servo systems
Digital or numerical systems
318640, G05B 1928
Patent
active
043946097
ABSTRACT:
A control and monitoring provision for final control elements such as inking and dampening fountain keys or metering screws at printing machines. A displacement pickup disk is solidly connected to the movable part of the final control element together with sensing means having two sensing elements. The output of the sensing elements is fed to a circuit for recognizing the direction of rotation of the final control element and to an electronic counting device with optical display. In a following comparison circuit the preset set point values are compared with the actual values and the comparison circuit is followed by a circuit for reversing the direction of rotation of the motor and for opening of a gate having its inputs connected as desired with a preset set point device and a data carrier and the output of the gate is connected to a monitor provision and by way of a following amplifier to the final control element.
REFERENCES:
patent: 4131840 (1978-12-01), Wiesner
patent: 4184107 (1980-01-01), Turini et al.
patent: 4187456 (1980-02-01), von der Heide
patent: 4291262 (1981-09-01), Nakajima
Geyer Gerd
Janicki Max
Keil Reinhart
Liefke Hans-Georg
Dobeck B.
Striker Michael J.
Veb Kombinat Polygraph "Werner Lamberz"
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