Rotary magnetic encoder using hall effect for detecting revoluti

Details Rotary magnetic encoder using hall effect for detecting revoluti Rotary magnetic encoder using hall effect for detecting revoluti

1998-11-13

2000-09-26

Strecker, Gerard

Electricity: measuring and testing

Magnetic

Displacement

324174, 32420712, 32420725, 310 68B, G01B 730, G01P 3487, H02K 1100

Patent

active

061247103

ABSTRACT:
According to the present invention, a zero-speed rotary pulse generator is disclosed. The zero-speed rotary pulse generator detects and counts shaft rotation of DC motors. The invention measures the rotation of a shaft by being coupled to a disc-shaped magnet having alternating polarity on its face. The magnet rotates at the same speed as the motor. Positioned close to the rotating magnet is a Hall effect device that can sense the alternating magnet polarity as the shaft rotates. The Hall effect device provides a digital output based upon the direction and the strength of the magnetic field it senses.

REFERENCES:
patent: 3112464 (1963-11-01), Ratajski et al.
patent: 3742243 (1973-06-01), Gamble
patent: 4392375 (1983-07-01), Eguchi et al.
patent: 4399407 (1983-08-01), Kling et al.
patent: 4570118 (1986-02-01), Tomczak et al
patent: 4642496 (1987-02-01), Kerviel et al.
patent: 4703261 (1987-10-01), Berchtold
patent: 4777464 (1988-10-01), Takabatashi et al.
patent: 4890059 (1989-12-01), Guentner
patent: 5055781 (1991-10-01), Sakakibara et al.
patent: 5089798 (1992-02-01), Miyata
patent: 5159268 (1992-10-01), Wu
patent: 5164668 (1992-11-01), Alfors
patent: 5191284 (1993-03-01), Moretti et al.
patent: 5270645 (1993-12-01), Wheeler et al.
patent: 5565834 (1996-10-01), Hanley et al.
patent: 5654633 (1997-08-01), Griffen et al.
patent: 5712561 (1998-01-01), McCurley et al.
patent: 5754085 (1998-05-01), Danby et al.
patent: 5757180 (1998-05-01), Chou et al.
European Patent Office, "Patent Abstract of Japan", Publication No. JP3074812, "Ferrite Magnetic Material", Publication Date Mar. 29, 1991.

Affiliated with

Also associated with

Rating

Rotary magnetic encoder using hall effect for detecting revoluti does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rotary magnetic encoder using hall effect for detecting revoluti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary magnetic encoder using hall effect for detecting revoluti will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2103093