Inductive position sensing device and apparatus with selectable

Details Inductive position sensing device and apparatus with selectable Inductive position sensing device and apparatus with selectable

1993-07-30

1995-09-26

O'Shea, Sandra L.

Electricity: measuring and testing

Magnetic

Displacement

32420724, 32420722, 336 45, 336136, 34087031, G01B 714, G08C 1906, H01F 2102, G01D 520

Patent

active

054536855

ABSTRACT:
A variable inductance device for indicating the position of one body relative to another includes primary and secondary windings which are mounted such that one is slidable over the other. The primary winding is wound on a body including annular channels for retaining the winding turns in an arbitrarily selectable turns distribution. The secondary is a shorted winding. A signal producing circuits electrically connected to the primary winding for producing a signal which varies with the device inductance. By selecting the turns distribution such that the device's inductance variation with position and the signal producing circuit's output variation with inductance complement each other, the output signal is made to vary as an arbitrarily selectable function of the position.

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