Electricity: motive power systems – Positional servo systems – Vehicular guidance systems with single axis control
Patent
1976-06-16
1978-03-28
Dobeck, B.
Electricity: motive power systems
Positional servo systems
Vehicular guidance systems with single axis control
73182, B64C 3118
Patent
active
040817300
ABSTRACT:
A multiple function generator is described in the environment of an airspeed indicator for controlling the maximum allowable airspeed needle in accordance with a plurality of selectable functions of altitude and comprises a cam having a plurality of surface segments shaped in accordance with the functions positioning a cam follower coupled to the maximum allowable airspeed needle. A null-seeking electro-mechanical feedback servo mechanism having an altitude signal applied to its input synchro drives the cam, thereby positioning the needle in accordance with the function of altitude represented by the cam surface segment in contact with the follower. Means are included for altering the null index of the servo thereby selectively engaging the desired cam functionsurface segment with the cam follower in accordance with the function desired. A selection knob is coupled with the indexing means for selecting the function.
REFERENCES:
patent: 2706407 (1955-04-01), Hosford
patent: 3435675 (1969-04-01), Knapp
patent: 3440601 (1969-04-01), Knapp
patent: 3453883 (1969-07-01), Caggia
patent: 3465583 (1969-09-01), Molis
patent: 3537086 (1970-10-01), Anderson
patent: 3686936 (1972-08-01), Daudt, Jr.
Cooper Albert B.
Dobeck B.
Sperry Rand Corporation
Terry Howard P.
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