Invention Application
- Patent Title: Magnetic Field Sensor for Sensing a Movement of a Ferromagnetic Target Object
- Patent Title (中): 用于感测铁磁性目标物体运动的磁场传感器
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Application No.: US14529577Application Date: 2014-10-31
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Publication No.: US20160123774A1Publication Date: 2016-05-05
- Inventor: Andrea Foletto , Jeffrey Eagen , Paul A. David
- Applicant: ALLEGRO MICROSYSTEMS, LLC
- Applicant Address: US MA Worcester
- Assignee: ALLEGRO MICROSYSTEMS, LLC
- Current Assignee: ALLEGRO MICROSYSTEMS, LLC
- Current Assignee Address: US MA Worcester
- Main IPC: G01D5/20
- IPC: G01D5/20
Abstract:
A magnetic field sensor operates as a motion detector for sensing a movement of a ferromagnetic target object having features. The magnetic field sensor has a plurality of magnetoresistance elements to generate, in a first channel, a feature signal indicative of a proximity of a feature of a ferromagnetic target object and, in a second channel, an edge signal indicative of a proximity of an edge of a feature of a ferromagnetic target object.
Public/Granted literature
- US09719806B2 Magnetic field sensor for sensing a movement of a ferromagnetic target object Public/Granted day:2017-08-01
Information query
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