Microwave proximity switch

Details Microwave proximity switch Microwave proximity switch

1991-12-16

1993-07-13

Gaffin, Jeffrey A.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

32420726, 324633, 324655, 340552, 340553, H01P 710, H03B 518

Patent

active

052276678

ABSTRACT:
A microwave proximity detector includes a microwave oscillator circuit having a dielectric resonator, or having a micro strip line as an inductor thereof so as to sense a change in an oscillation frequency or output from the oscillator circuit caused by a variation in an impedance of a circuit including the dielectric resonator, or of the micro strip line, due to a loss which takes place in a leakage magnetic field from the micro strip line when an object approaches the leakage magnetic field, thereby detecting an object in the neighborhood of the switch.

REFERENCES:
patent: 4215341 (1980-07-01), Cole
patent: 4553040 (1985-11-01), Truper et al.
patent: 4613830 (1986-09-01), Kamiya et al.
patent: 4663542 (1987-05-01), Buck et al.
patent: 4771359 (1988-09-01), Link
patent: 4845422 (1989-07-01), Damon
patent: 4968953 (1990-11-01), Kanda et al.

Affiliated with

Also associated with

Rating

Microwave proximity switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Microwave proximity switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microwave proximity switch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2314390