Angle transducer storing an integral number of revolutions' wort

Details Angle transducer storing an integral number of revolutions' wort Angle transducer storing an integral number of revolutions' wort

1986-10-20

1987-09-29

Miska, Vit W.

Communications: electrical

Audible indication

Percussion-type sound producer

340347AD, 364559, H03K 1302, G06F 1520

Patent

active

046971688

ABSTRACT:
An angle transducer includes input rotor and reference rotor assemblies that are mounted for rotation upon a common shaft and that cooperate with respective moveable input stator and fixed reference stator assemblies to produce signals whose phase difference represents an input angle. Diametrically opposed sensors in each stator assembly achieve enhanced eccentricity error reduction by producing separate signals whose phases are averaged after the phase of each is individually measured. A phase measurement technique does not rely upon the mechanical accuracy of the angular placement of the poles for the rotor assemblies. A phase measurement between two signals is performed by beginning on an arbitrary zero crossing of the signal from the reference stator and forming, for each rotor, the sum of the times for the zero crossings for one complete revolution.

REFERENCES:
patent: 2901170 (1959-08-01), Poole
patent: 3745544 (1973-07-01), Ond
patent: 4449191 (1984-05-01), Meanert

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