MAGNETIC SENSORS PRINTING AND INTEGRATION: DESIGNS, MATERIALS, METHODS, AND PROCESSES
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United States of America Patent
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Issued Date -
Oct 31, 2019
app pub date -
Apr 27, 2018
filing date -
Apr 27, 2018
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Abstract
An additive manufacturing direct writing method of producing a magnetic pattern on a substrate by extruding one or more filaments of a magnetic ink compound through a nozzle at an extrusion speed on to the substrate where there is a relative speed between the nozzle and the target substrate, and curing the plurality of filaments of magnetic ink compound using UV light and/or heat. A unipolar magnetic pattern can be produced by applying a magnetic field strength to the cured magnetic pattern. A bipolar magnetic pattern is produced by folding a unipolar magnetic pattern in half about a fold crease on the substrate, creating a sandwich of alternating magnetic elements between the substrate. The magnetic flux density can be lateral or perpendicular to the substrate. A magnetic position sensor system includes the magnetic pattern and a magnetic sensor.
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