Electricity: motive power systems – Positional servo systems – Frequency- or phase-modulated systems
Patent
1979-09-26
1982-01-12
Dobeck, B.
Electricity: motive power systems
Positional servo systems
Frequency- or phase-modulated systems
318661, 3408252, G05B 101
Patent
active
043107907
ABSTRACT:
A device for position control including a first generator for delivering first and second identical signals dephased to each other by 90.degree.. A position pickup having two inputs connected to the first and second signals and an output for delivering a measurement signal whose phase is representative of the actual angular position of the component part to be controlled. A second generator for receiving a digital binary word instruction and for delivering an instructional signal of the same frequency as the first and second signals and having a phase representative of the desired angular position of the component part. A deviation signal generator connected to the output of the angular position pickup and the second generator for delivering a deviation signal representative of the dephasing between the measurement and instruction signals and a control device for controlling the angular position of the component as a function of the deviation signal.
REFERENCES:
patent: 3227863 (1966-01-01), Windsor
patent: 4023085 (1977-05-01), Bishop et al.
patent: 4134106 (1979-01-01), Hungerford
patent: 4204257 (1980-05-01), Hungerford
Dobeck B.
Kollmorgen Technologies Corporation
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