Inductive position indicator using two oscillators with periodic

Details Inductive position indicator using two oscillators with periodic Inductive position indicator using two oscillators with periodic

1991-01-29

1992-01-07

Grimm, Siegfried H.

Oscillators

With device responsive to external physical condition

324236, 340686, 377 17, G01B 730, H03J 500

Patent

active

050795236

ABSTRACT:
An inductive position indicator in particular for determining an angular position of a throttle flap of an internal combustion engine comprises an oscillator circuit, reversible oscillating circuit branches, a position detecting element cooperating with the oscillating circuit branches for position-dependent change of their inherent frequencies, and an evaluating circuit which determines the position from the current inherent frequencies, the oscillator circuit having two oscillators which in one reverse position cooperate with an associated first respectively second oscillating circuit branch and in another reverse position oscillating circuit elements of the first and second oscillating circuit branches are exchanged with one another so that each oscillator cooperates with a third respectively a fourth oscillating circuit branch of another inherent frequency.

REFERENCES:
patent: 4088874 (1978-05-01), Hartig
patent: 4644570 (1987-02-01), Brosh et al.

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