Method and apparatus for manufacturing ultralow-resistance current sensors
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United States of America Patent
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Feb 7, 2012
Grant Date -
Nov 5, 2009
app pub date -
Dec 3, 2008
filing date -
May 5, 2008
priority date (Note) -
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Abstract
A method for manufacturing ultralow-resistance current sensors of size 0402 to 4518 of IEEE specifications includes the steps of: a raw metallic strip being pressed to roll over a first tension roller, a cutting tool over the first tension roller being fed to cut the raw metallic strip so as to form a deep groove thereof along the moving metallic strip, an insulating material being filled into and along the deep groove so as to form an lengthwise insulating portion of the metallic strip, and the metallic strip with the insulating portion being segmented into a plurality of ultralow-resistance current sensors.
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