High frequency oscillation type proximity switch

Details High frequency oscillation type proximity switch High frequency oscillation type proximity switch

1984-06-04

1986-04-15

Tolin, G. P.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

361180, 361179, H01H 3500

Patent

active

045830061

ABSTRACT:
A high frequency oscillation type proximity switch, being an approach switch adapted for detecting the approach to or departure from the detector coil of a metal body, based on the change in output of the high frequency oscillator circuit, with the oscillator coil of the oscillator circuit as the detector coil, in which a small-diameter housing case is inserted in the cable interconnecting the detector head and the power source, the printed substrate for use as the signal detector circuit is provided in housing case and the housing case is filled with an insulation resin.

REFERENCES:
patent: 4271763 (1981-06-01), Berger
patent: 4378504 (1983-03-01), Yamasaki
patent: 4456834 (1984-06-01), Harris

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