Abstract: In accordance with the present invention, a non-contacting position sensor using bipolar tapered magnets is provided. A non-contacting position sensor in accordance with the preferred embodiment uses a pole piece having a first plate and a second plate. Four magnets are affixed to the first plate and second plate. Each magnet has a thick end and a thin end. Two magnets generate a linearly varying magnetic field having a first polarity, while the other two magnets generate a linearly varying magnetic filed having a second polarity. An air gap is formed in the space between the four magnets. A magnetic flux sensor is positioned within the air gap. The component whose position is to be monitored is rigidly attached to either the pole piece or the magnetic flux sensor, causing the magnetic flux sensor to move relative to the magnets within the air gap as the component moves.
Type:
Grant
Filed:
December 9, 1998
Date of Patent:
April 3, 2001
Assignee:
CTS
Inventors:
John S. Duesler, Craig A. Jarrard, Robert L. Newman, Ronald C. Nonnenmacher, David S. Pfaffenberger, David J. Miller