High resolution position sensor circuit

Details High resolution position sensor circuit High resolution position sensor circuit

1989-08-21

1991-04-30

Pellinen, A. D.

Coded data generation or conversion

Digital pattern reading type converter

Magnetic, inductive or capacitive

341 11, 341 6, 341159, H03M 130

Patent

active

050122398

ABSTRACT:
A resolution enhancement circuit comprises a voltage divider used to add multiples of two position representing quadrature signals into a plurality of adder output signals having zero crossings during the cycle of the quadrature signals, a digitizer creating a plurality digital signals based on the individual adder output signals and an output logic circuit combining the digital signals into a new pair of digital quadrature signals of increased resolution. The circuit provides information for more precise control of die casting machines and the like.

REFERENCES:
patent: 4630928 (1986-12-01), Klingler et al.
patent: 4651130 (1987-03-01), Pennell
patent: 4754259 (1988-06-01), Joseph et al.

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