Rotation detection apparatus utilizing array of...

Details Rotation detection apparatus utilizing array of... Rotation detection apparatus utilizing array of...

2007-02-06

2007-02-06

LeDynh, Bot (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

C324S207250

Reexamination Certificate

active

11103645

ABSTRACT:
A rotation detection apparatus utilizes a bias magnet and an array of four or more sets of magnetoresistive elements, with each set producing an output potential varying according to changes of a magnetic field vector as protrusions and recessed portions of a rotor periphery move past the array, and utilizes differential amplifiers to operate on specific combinations of the output potentials for deriving a detection signal expressing rotation information. By appropriately adjusting respective positions of the sets of magnetoresistive elements and/or respective amplification factors of the differential amplifiers, suitable detection characteristics for various rotor configurations can be obtained.

REFERENCES:
patent: 4506217 (1985-03-01), Rothley et al.
patent: 5869962 (1999-02-01), Kasumi et al.
patent: 6924639 (2005-08-01), Uenoyama
patent: 2003/0173955 (2003-09-01), Uenoyama
patent: 2004/0174164 (2004-09-01), Ao
patent: A-54-127346 (1979-10-01), None
patent: 2003-269995 (2003-09-01), None
Search Report from French Patent Office Issued on May 23, 2006 for the corresponding French patent application No. FR 0503686.

Affiliated with

Also associated with

Rating

Rotation detection apparatus utilizing array of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rotation detection apparatus utilizing array of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotation detection apparatus utilizing array of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3861592