The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 08, 1992
Filed:
Aug. 20, 1991
Darren Laughlin, Albuquerque, NM (US);
Applied Technology Corporation, Albuquerque, NM (US);
Abstract
An inertial linear actuator for stabilizing a platform against vibration includes a movable coil having windings which may be energized, supported on an actuator guide for movement. The actuator guide is fixed to the platform and a current is supplied to the movable coil to generate a force for damping sensed vibrations on the platform surface. Permanent magnets parallel to the actuator guide, and a current in the movable coil results in a force being introduced between the movable coil and the stationary actuator guides. A control system on the platform supplies a feedback signal from an accelerometer coupled to the platform to drive electronics. The drive electronics produce a current having the magnitude and direction for creating the actuator force for damping the sensed disturbance.