Linear encoding device with staggered detectors

Details Linear encoding device with staggered detectors Linear encoding device with staggered detectors

1998-08-03

2000-08-08

Strecker, Gerard

Electricity: measuring and testing

Magnetic

Displacement

32420724, 324173, 310 12, 318135, 341 15, G01B 714, G01P 350, F16C 2900, H02K 4102

Patent

active

061006815

ABSTRACT:
Onto a long rectangular board like base board, first Hall IC's are mounted at specified equal pitches in the longitudinal direction, and second Hall IC's are mounted at the equal pitches from a position shifted by a phase difference of 90 degrees in the longitudinal direction relative to this first Hall IC, and a single rectangular board like field magnet (12) having a length of a half of the equal pitch is mounted, opposite to the first Hall IC's and the second hole IC's, and consequently, a linear encoding device is provided, by which a long positional measurement can be performed, and further, which has a simple arrangement.

REFERENCES:
patent: 4361835 (1982-11-01), Nagy
patent: 5043660 (1991-08-01), Hasegawa
patent: 5606256 (1997-02-01), Takei

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