Electricity: electrical systems and devices – Electrostatic capacitors – Variable
Patent
1998-02-09
2000-05-16
Kincaid, Kristine
Electricity: electrical systems and devices
Electrostatic capacitors
Variable
361289, 361272, H01G 506
Patent
active
060645598
ABSTRACT:
An optical position sensor for a vacuum tuning capacitor employs optic fibers that are positioned adjacent a nut associated with the guide shaft. A threaded lead screw is rotated to lift the nut and move the capacitor from a fully-withdrawn home position to a tuning position. A first fiber has its terminus aligned with the terminus of a second fiber to define a gap. A flag or shutter on the nut is positioned in the gap to block the light path between the fibers when the nut is in the home position, but is out of the gap to allow passage of light otherwise. This produces normally on signaling, giving the position sensor a fail-safe capability. The sensor can be incorporated into a cap or cover of the tuning capacitor.
REFERENCES:
patent: 2308694 (1943-01-01), Jenner
patent: 3495142 (1970-02-01), Herrgen et al.
patent: 3496431 (1970-02-01), Goetzl
patent: 3560811 (1971-02-01), Farago
patent: 3662235 (1972-05-01), Napolin
patent: 3968364 (1976-07-01), Miller
patent: 4007406 (1977-02-01), Weisbrod
patent: 4177495 (1979-12-01), Perret
patent: 4390924 (1983-06-01), Nebiker, Jr.
patent: 4953057 (1990-08-01), Davidian
patent: 5590015 (1996-12-01), Planta et al.
ENI Technologies Inc.
Kincaid Kristine
Thomas Eric W.
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