Magnetically tracked sensor
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United States of America Patent
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Mar 31, 2015
Grant Date -
Jun 12, 2014
app pub date -
Dec 12, 2012
filing date -
Dec 12, 2012
priority date (Note) -
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Abstract
A magnetic field sensor assembly includes a hollow cylindrical core, conductive material and at least first and second lead wires. The hollow cylindrical core is made of ferromagnetic material and has a proximal end and a distal end. The conductive material is disposed around the hollow cylindrical core and forms at least one turn of a coil that has at least one start terminal and at least one finish terminal. The first and second lead wires pass through the center of the hollow cylindrical core and the first lead wire is connected to the start terminal thereby forming a first termination and the second lead wire is connected to the finish terminal thereby forming a second termination. The first and second terminations are positioned within the hollow cylindrical core.
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