Rotator with remote indicator and self-synchronization

Details Rotator with remote indicator and self-synchronization Rotator with remote indicator and self-synchronization

1977-06-03

1978-08-22

Dobeck, B.

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

318 85, 318436, 318469, G05B 1114

Patent

active

041091914

ABSTRACT:
An antenna rotator of the type including a first remote drive motor for rotating a remote shaft and a control unit including a second motor for driving an indicator-control member into alignment with a preselect member is described. Self-synchronization and de-energization of the two motors is provided herein when the shaft has been rotated to an end stop position and the indicator-control member is not in alignment with the preselect member. This self-synchronization and de-energization is achieved by sensing the increased current levels caused when the first motor is prevented from rotating by the end stop to apply the energizing potentials being applied to the first motor directly to the second motor whereupon the indicator-control member is aligned with the preselect member and both motors are de-energized.

REFERENCES:
patent: 3495143 (1970-02-01), Deming
patent: 3860859 (1975-01-01), Buckley
patent: 4023080 (1977-05-01), Tanimoto

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