Non-contact rotation angle detecting sensor

Details Non-contact rotation angle detecting sensor Non-contact rotation angle detecting sensor

2007-01-02

2007-01-02

LeDynh, Bot (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

Reexamination Certificate

active

11261547

ABSTRACT:
A stationary yoke surrounds an outer peripheral surface of a ring-shaped permanent magnet in a certain distance. The ring-shaped permanent magnet is fixed to a rotor and has two poles of N, S poles in a diameter direction. The stationary yoke includes a first outside yoke and a second outside yoke overlapped in an axial direction and a hole element is disposed in a gap of the first outside yoke. An axial height of the first outside yoke changes along the circumferential direction and a height of the second outside yoke has a complementary relation with the height of the first outside yoke, and the first outside yoke and the second outside yoke are overlapped in a certain clearance. A ratio of an amount of the magnetic flux passing through the gap to an amount of the magnetic flux not passing through the gap changes with rotation of the ring-shaped permanent magnet and further, the change of the height causes a change in the magnetic flux amount flowing in the first outside yoke, thereby improving linearity of an output of a hole element.

REFERENCES:
patent: 6593734 (2003-07-01), Gandel et al.
patent: 2004/0217757 (2004-11-01), Tromblee

Affiliated with

Also associated with

Rating

Non-contact rotation angle detecting sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Non-contact rotation angle detecting sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-contact rotation angle detecting sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3825246