Communications: electrical – Continuously variable indicating – With particular transmitter
Patent
1978-08-29
1981-09-29
Groody, James J.
Communications: electrical
Continuously variable indicating
With particular transmitter
324 61R, G08C 1910
Patent
active
042926327
ABSTRACT:
A displacement sensing device is disclosed having a capacitance transduction element which provides a linear transfer function with an output in a synchro-resolver form that is directly convertable to digital form. The transduction element includes four separate windings on each of the closely adjacent faces of a pair of coaxially positioned cylinders forming a rotor-stator assembly. Reference input voltages are coupled to specific predetermined windings on the stator to produce electrical outputs on the different windings on the rotor that are dependent upon the relative positioning of the stator and rotor, which outputs are coupled as charges through differential charge amplifiers to produce output voltage signals that are indicative of the relative positioning of the stator and rotor and are of a form determined by the applied reference voltages.
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ISA Transactions, vol. 10, No. 3, Bloss, pp. 242-249.
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