Electronic proximity switch dependent upon a magnetic field
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United States of America Patent
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Aug 24, 1993
Grant Date -
N/A
app pub date -
Feb 5, 1991
filing date -
Feb 6, 1990
priority date (Note) -
Expired
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Abstract
An electronic proximity switch dependent upon a magnetic field includes an HF resonant circuit adapted to be influenced by an approaching magnetic trigger. A coil arrangement includes a member drivable into magnetic saturation, with the member including an amorphous or predominantly amorphous metallic band of high permeability. A coil bobbin for accommodating the resonant circuit coil and the drivable member is made of a synthetic resin enriched with a pulverulent permeable material.
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