Aeronautics and astronautics – Missile stabilization or trajectory control – Automatic guidance
Patent
1956-05-07
1978-06-06
Engle, Samuel W.
Aeronautics and astronautics
Missile stabilization or trajectory control
Automatic guidance
74 546, 250203R, 250204, F42B 1328, F41G 710, G01C 1928, G01C 1953
Patent
active
040931544
ABSTRACT:
37. In combination in a missle guidance system, a target seeking apparatus having radiation responsive means including a scanner, a gyroscope having a rotor, said scanner being mounted on said rotor for picking up radiation from a target, means for precessing said gyroscope rotor to align its axis with the sight line to said target, said radiation responsive means producing a signal when the gyroscope rotor axis deviates from alignment with the sight line to said target, said signal having a time phase dependent on the radial direction of departure of said target from the gyro rotor axis, the precessing means embodying mechanism responsive to the phase of said signal whereby said gyro is precessed in the proper sense to align its axis with the line of sight to said target, a position sensing means included in said target seeking apparatus and mounted adjacent said gyro rotor for sensing the position of said gyro rotor, and servo means responsive to signals from said gyro rotor position sensing means for guiding said missile.
38. A target seeking device for a guided missile comprising a gyroscopically stabilized means for optically scanning a limited region about a first coordinate axis for electromagnetic radiations emanating from a target source, said means including a permanent magnet rotor rotatable with said gyroscopic means about said first axis, the magnetic poles of said permanent magnet defining a second coordinate axis transverse to said first coordinate axis, a radiation sensitive means for producing electrical signal variations in response to variations in radiation incident on said radiaton sensitive means, said radiation sensitive means being fixedly positioned relative to said scanning means for receiving said radiations from said scanning means to cause said electrical signals generated thereby to vary in magnitude with the directional displacement of said target with respect to said first coordinate axis and in time phase with the polar angular position of said target with respect to the second coordinate axis, and means interacting with said permanent magnet rotor responsive to said signal for applying a magnetic force to said gyroscopically stabilized means having a component normal to said second axis and in a direction causing said gyroscopically stabilized means to precess through an angle and in a direction to bring said first coordinate axis into directional alignment with said target source.
REFERENCES:
patent: 1388932 (1921-08-01), Centervall
patent: 1412453 (1946-12-01), Grimslaw
patent: 2423885 (1947-07-01), Hammond
patent: 2517702 (1950-08-01), Offner
patent: 2695165 (1954-11-01), Hansen
patent: 2705274 (1955-03-01), Buck
patent: 2707400 (1955-05-01), Manger
patent: 2762123 (1956-09-01), Schultz et al.
patent: 2866146 (1958-12-01), Rodriguez, Jr.
patent: 2935942 (1960-05-01), De Young
patent: 2948813 (1960-08-01), Osborne
Engle Samuel W.
Miller R.
Sciascia R. S.
Walter G. Finch
Webb Thomas H.
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