Inductor devices – With condition-responsive inductance adjusting means
Patent
1980-01-10
1981-12-15
Tolin, Gerald P.
Inductor devices
With condition-responsive inductance adjusting means
336136, 338128, 200153LA, H01F 2102
Patent
active
043062083
ABSTRACT:
Mechanical lever controllers, also known as joy-stick type actuators, include a body within which is mounted a rod or lever for pivotal movement. The position of the rod is transmitted by an intermediate coupling or follower member to a differential transformer of the linear voltage differential transducer type (LVDT). The transducer includes an input coil and a pair of oppositely-positioned, axially-aligned output coils, and an armature moves within an armature cavity to vary the inductive coupling between the primary coil and the secondary coils. In one embodiment, two such differential transformers are offset at 90.degree. from each other to provide signals on the "X" and "Y" axes. In another embodiment, single axis output is measured in an actuator having a stackable housing.
REFERENCES:
patent: 2408770 (1946-10-01), Frische et al.
patent: 2842147 (1958-07-01), Markson
patent: 2895086 (1959-07-01), Pettit
patent: 2903663 (1959-09-01), Collina
patent: 3047682 (1962-07-01), Hults
patent: 3434342 (1969-03-01), Kazmarek
Universal Operator, OEM Controls, Inc., Norwalk, Conn., 9/10/75.
Potentiometers, Kraft Systems, Inc., Vista, California, 8/22/75.
Ledex Inc.
Tolin Gerald P.
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