Low moving mass two axis gimbal

Details Low moving mass two axis gimbal Low moving mass two axis gimbal

1990-05-21

1992-09-01

Chin-Shue, Alvin C.

Supports

Stand

To hold a particular article

F16M 1112

Patent

active

051433346

ABSTRACT:
The low moving mass two axis gimbal shown here has a drive gimbal 10 and a payload gimbal 12 on a common central post 14. Each gimbal 10,12 has two axes 16,18,20,22. The rings 24,26 of the gimbals 12,14 are kept parallel to each other by three push rods 28,30,32, which are parallel to the post 14 and are joined to the rings 24,26 by universal joints 34,36,38,40,42,44. The distance between corresponding pivot points (46 and 52,48 and 54, and 50 and 56) is the same, and equals the distance from drive gimbal pivot 58 to payload gimbal pivot 60. In the drive gimbal 10, an X-axis motor 62 mounted on the central post 14 drives the X-axis 16, and a Y-axis motor 64 mounted on the X-axis 16 drives the Y-axis 18. Providing two small gimbal rings 24,26 instead of one large ring reduces the moving mass (rotational inertia) of the device, thereby producing quicker response times. Providing twin rings 24,26 also allow the device to fit within a narrower (although longer) volume than providing a single ring would.

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patent: 4862739 (1989-09-01), Dobbs
patent: 4919382 (1990-04-01), Forman
patent: 4951521 (1990-08-01), Jacobson

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