Position sensor

Details Position sensor Position sensor

1998-05-14

1999-09-07

Swann, Glen

Communications: electrical

Condition responsive indicating system

Specific condition

33 1PT, 180336, 200179, 340456, 341 16, G08B 2100

Patent

active

059493445

ABSTRACT:
A position sensor including a rotational shaft (7), a plurality of brushes (13, 15, 17, 19) supported by the rotational shaft (7), a housing (3), a printed circuit board (21) fixed to the housing (3), a main conductor (M) provided on the printed circuit board (21) and contacting with the brushes (13, 15, 17, 19) for generating a primary signal in accordance with which a predetermined number of positions has been attained by the rotational shaft (7), and a subordinate conductor (S) provided on the circuit board (21) and contacting with the brushes (13, 15, 17, 19) for generating a secondary signal in accordance with the which a predetermined number of positions has been attained by the rotational shaft (7). The secondary signal keeps the same voltage level around a predetermined position. According to the present invention, the predetermined position of the rotational shaft (7) may be detected accurately. Further, the cost of the position sensor may be reduced.

REFERENCES:
patent: 5561416 (1996-10-01), Marshall et al.
"Service Manual for Toyota Crown Hardtop (first volume)", published in Japan on Oct. 11, 1991.

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