Rotor having magnet mountable seats for rotor identification, an

Details Rotor having magnet mountable seats for rotor identification, an Rotor having magnet mountable seats for rotor identification, an

1993-12-21

1995-01-17

Scherbel, David A.

Road structure, process, or apparatus

Traffic director

Yielding

B04B 1300

Patent

active

053822188

ABSTRACT:
Predetermined magnet mountable seats are provided on the lower portion of a rotor at equal angular intervals around the central axis of the rotor so that magnets may be mounted in one or more of the magnet mountable seats in an array pattern. Various array patterns may be provided by different combinations of presence and absence of magnets depending on the types of rotors. Arranged on a fixed mount in opposing relation with the array of magnet mountable seats are magnetic sensors along a circle around the central axis at angular intervals equal to or smaller than the angular intervals of the magnet mountable seats. A microprocessor identifies the type of rotor by detecting the array pattern of magnets on the basis of detected outputs from the magnetic sensors.

REFERENCES:
patent: 3462670 (1969-08-01), Waye
patent: 4257040 (1981-03-01), Shirasaki et al.
patent: 4551715 (1985-11-01), Durbin
patent: 4601696 (1986-07-01), Kamm
patent: 4700117 (1987-10-01), Giebeler et al.
patent: 4772254 (1988-09-01), Grassl et al.
patent: 4827197 (1989-05-01), Giebeler
patent: 5037371 (1991-08-01), Romanauskas
patent: 5221250 (1993-06-01), Cheng
patent: 5235864 (1993-08-01), Rosselli et al.
patent: 5338283 (1994-08-01), Fleming et al.

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