Electricity: measuring and testing – Magnetic – Displacement
Patent
1997-06-19
1999-11-30
Ballato, Josie
Electricity: measuring and testing
Magnetic
Displacement
G01B 714
Patent
active
059948957
ABSTRACT:
An inductive displacement sensor comprises a magnetically conductive housing, a coil located within the conductive housing, and a solenoid plunger movable within the coil. A ring-shaped air gap is formed between the solenoid plunger and the conductive housing. A short-circuit ring surrounds the solenoid plunger and is located on the outside of the conductive housing and in front of the ring-shaped air gap. An electronic unit is connected to the coil that measures the displacement-dependent inductance of the coil.
REFERENCES:
patent: 4859942 (1989-08-01), Charton et al.
patent: 5302894 (1994-04-01), Hrubes
Bolte Heiko
Eden Gerd
Ballato Josie
Sundaram T. R.
WABCO GmbH
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