Bi-axial supporting arrangement

Details Bi-axial supporting arrangement Bi-axial supporting arrangement

F - Mech Eng,Light,Heat,Weapons

41

G

341/105, 310/65

F41G 7/22 (2006.01) G01C 19/02 (2006.01) H01Q 3/20 (2006.01)

Patent

CA 1253559

12 ABSTRACT: Bi-axial supporting arrangement. The invention relates to a supporting arrangement for a rotatable element (16), as a rotating mirror or an- tenna included in a target seeker mounted at the nose of a projectile. The rotatable element (16) is supported by a bearing body, as a spherical ball (15), which is placed in a corresponding spherical recess (14) in a stationary part (12, 13). The ball (15) is supported by air or liquid in its recess so that it can perform both rational motion about a spin axis (10) and angular deflection motions about turning axes (01, 02) lying in a plane, which is perpen- dicular to the spin axis. According to the invention the angular deflection of the ball (15) about the said turning axes (01, 02) is controlled by means of magnetic fields, which are produced by magnetic yokes (25-27) provided with coils (22, 24). The yokes are terminated by magnetic poles (30-33) situated at the surface of the spherical recess (14) and cooperate with a magnetic, e.g. soft magnetic, part (29) of the ball (15). -(Fig. 1).

509664

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