Steering center indicator device

Details Steering center indicator device Steering center indicator device

1998-03-30

1999-08-31

Barlow, John

Data processing: measuring, calibrating, or testing

Measurement system

Orientation or position

702148, 701 41, 701 43, 180412, G06F 1550

Patent

active

059466448

ABSTRACT:
A shaft position indicator in which a collar is formed on and moves on in accordance with a shaft. The collar is placed opposite an optical sensor and includes a notch which activates an optical sensor when the notch is located opposite the sensor. When the notch is opposite the sensor, a driving circuit outputs a voltage. When the notch is not opposite the sensor, the driving circuit outputs 0 voltage. The light source and sensor are placed a distance from the collar equal to the focal length to substantially eliminate interference from ambient light.

REFERENCES:
patent: 4996657 (1991-02-01), Shiraishi et al.
patent: 5008823 (1991-04-01), Takahashi
patent: 5065323 (1991-11-01), Shiraishi et al.
patent: 5283740 (1994-02-01), Sato et al.
patent: 5465210 (1995-11-01), Walenty
patent: 5717606 (1998-02-01), Hara et al.
patent: 5787375 (1998-07-01), Madau et al.

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