Inductive divider position sensor with fixed and variable impeda

Details Inductive divider position sensor with fixed and variable impeda Inductive divider position sensor with fixed and variable impeda

1992-08-07

1994-07-19

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Displacement

32420712, 32420724, G01B 714

Patent

active

053312775

ABSTRACT:
Disclosed is an inductive divider sensor that comprises a variable inductor (12) connected in series with a fixed inductor (16) between a source of AC voltage and ground. A target element (18) is moved by an object whose position is to be sensed along an axis that extends through the variable inductor thereby changing its impedance. The impedance of the variable inductor is designed to vary such that the voltage taken at a node where the variable inductor and fixed inductor are connected varies according to a predetermined linear output signal.

REFERENCES:
patent: 2452156 (1948-10-01), Schover
patent: 3891918 (1975-06-01), Ellis
patent: 4667158 (1987-05-01), Redlich
patent: 4845429 (1989-07-01), Burreson
patent: 4926123 (1990-05-01), Redlich
patent: 4950986 (1990-08-01), Guerrero
patent: 5010298 (1991-04-01), Uemura

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