Invention Grant
US07772835B2 AMR array magnetic design for improved sensor flexibility and improved air gap performance
有权
AMR阵列磁性设计,提高传感器灵活性和改善气隙性能
- Patent Title: AMR array magnetic design for improved sensor flexibility and improved air gap performance
- Patent Title (中): AMR阵列磁性设计,提高传感器灵活性和改善气隙性能
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Application No.: US12139645Application Date: 2008-06-16
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Publication No.: US07772835B2Publication Date: 2010-08-10
- Inventor: Anthony Dmytriw , Kent E. Van Ostrand
- Applicant: Anthony Dmytriw , Kent E. Van Ostrand
- Applicant Address: US NJ Morristown
- Assignee: Honeywell International Inc.
- Current Assignee: Honeywell International Inc.
- Current Assignee Address: US NJ Morristown
- Agency: Shumaker & Sieffert, P.A.
- Main IPC: G01R33/02
- IPC: G01R33/02 ; G01R33/06

Abstract:
An AMR array magnetic position sensing system for improved sensor flexibility and improved air gap performance is disclosed. A pair of magnets can be enclosed in a magnet carrier that moves along a path and located above an array of AMR position sensors. The magnets are generally magnetized through the length of the magnets, and the magnets are positioned in the carrier such that an angle between the magnets exists in a manner similar to an angle made by AMR runners on a surface of the AMR positions sensors to create magnetic flux lines thereof. The AMR position sensors come into contact with the uniform magnetic flux lines to sense a change in linear and angular position associated with the magnet carrier. The output signal generated by the AMR position sensors have less susceptibility to variations in air gap as the angles of the magnetic flux lines generated by the magnets do note change with respect to air gap variation.
Public/Granted literature
- US20090309580A1 AMR ARRAY MAGNETIC DESIGN FOR IMPROVED SENSOR FLEXIBILITY AND IMPROVED AIR GAP PERFORMANCE Public/Granted day:2009-12-17
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