Proximity switch

Details Proximity switch Proximity switch

G - Physics

08

B

26/120, 340/124.

G08B 1/08 (2006.01) B29C 70/84 (2006.01) H03K 17/95 (2006.01) H05K 13/00 (2006.01)

Patent

CA 1195406

ABSTRACT "Proximity Switch" (Fig . 1) The switch is of the type, known per se, in which an induction coil is driven by an oscillator. The coil is initially positioned in an end cap and secured therein by potting with epoxy resin . This allows the coil and cap to be handled as a unit during manufacture without damage to the coil. The switch is calibrated and adjusted automatically by abrading away part of a resistive layer on a circuit substrate . The circuitry of the switch has its lower potential side coupled to the housing via a capacitor, by means of a conductive adhesive tape trapped between the housing and an end closure.

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