Helicopter force feel actuator automatic static null compensatio

Details Helicopter force feel actuator automatic static null compensatio Helicopter force feel actuator automatic static null compensatio

1980-08-08

1983-05-03

Chin, Gary

Boots, shoes, and leggings

244223, 244 1713, B64C 1304

Patent

active

043822819

ABSTRACT:
A bias voltage, which can be added to force commands applied to a helicopter control stick actuator, to compensate for static null offset errors, is generated as the average of the summation or integral of actuator pressure, or pressure differential, sensed while the force is moved from a first position which is halfway aft through null to a second position which is halfway forward and back through null to the first position, the pressure readings which are averaged being taken only through the central portion of the motion, the motion being controlled to be extremely slow compared to normal permissible stick motion.

REFERENCES:
patent: 3719336 (1973-03-01), Fowler et al.
patent: 3733039 (1973-05-01), O'Connor et al.
patent: 4078749 (1978-03-01), Johnson, Jr.
patent: 4294162 (1981-10-01), Fowler et al.
patent: 4313165 (1982-01-01), Clelford et al.

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