RADIO FREQUENCY WEAK MAGNETIC FIELD DETECTION SENSOR AND METHOD OF MANUFACTURING THE SAME
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United States of America Patent
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Issued Date -
Sep 14, 2023
app pub date -
May 23, 2023
filing date -
May 23, 2023
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Abstract
A radio frequency (RF) weak magnetic field detection sensor includes a ferromagnetic core, a pickup coil disposed to surround the ferromagnetic core, a substrate that includes an opening, a core pad connected to the ferromagnetic core and a coil pad connected to the pickup coil, and an insulating tube interposed between the ferromagnetic core and the pickup coil. The insulating tube includes a bobbin around which the pickup coil is wound, and a core hole formed to pass through the bobbin and configured to accommodate the ferromagnetic core.
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