Results 91 to 100 of about 22,770 (227)

Comparative Study of Disturbance Observer-Based Control Methods on an Industrial Gimbal System

open access: yesIEEE Access
Disturbance-observer-based control (DOBC) methods are developed to approximate the closed-loop behavior of dynamic systems to the nominal system response determined during the design phase.
Mucahid Ridvan Kaplan   +3 more
doaj   +1 more source

Magnetic suspension and pointing system [PDF]

open access: yes, 1978
An apparatus is reported for accurate pointing of instruments on a carrier vehicle and for isolation of the instruments from the vehicle's motion disturbances. The apparatus includes two assemblies with connecting interfaces.
Anderson, W. W., Groom, N. J.
core   +2 more sources

A Review of Pointing Modules and Gimbal Systems for Free-Space Optical Communication in Non-Terrestrial Platforms

open access: yesPhotonics
As the world is technologically advancing, the integration of FSO communication in non-terrestrial platforms is transforming the landscape of global connectivity. By enabling high-data-rate inter-satellite links, secure UAV–ground channels, and efficient
Dhruv, Hemani Kaushal
doaj   +1 more source

Attitude control of reentry vehicles in roll channel using single-gimbal control moment gyros and a reaction control system

open access: yesAdvances in Mechanical Engineering, 2017
A novel roll-channel attitude control scheme using a combination of single-gimbal control moment gyros and a reaction control system is proposed, providing sufficient control torque during the whole reentry process.
Xiang Yu, Kun Liu
doaj   +1 more source

The Static Unbalance Analysis and Its Measurement System For Gimbals Axes of an Inertial Stabilization Platform

open access: yesMetrology and Measurement Systems, 2015
To reduce the influence of the static unbalance on an infrared missile guidance system, a new static unbalance measure system for the gimbals axes has been developed.
Yang Hui, Zhao Yan, Li Min, Wu Falin
doaj   +1 more source

Measurement of external forces and torques on a large pointing system [PDF]

open access: yes, 1980
Methods of measuring external forces and torques are discussed, in general and as applied to the Large Pointing System wind tunnel tests. The LPS tests were in two phases.
Morenus, R. C.
core   +1 more source

An appraisal for use in reliability analysis of the test and data collection procedures in the manufacture of an inertial guidance system [PDF]

open access: yes
Behavior of first gimbal stabilization loop for reliability analysis of inertial guidance ...
Conner, W. S., Thompson, W. S.
core   +1 more source

On the design and development of a miniature ceramic gimbal bearing [PDF]

open access: yes
A review is made of a program to develop ceramic gimbal bearings for a miniaturized missile guidance system requiring nonmagnetic properties and higher load capacity than possible with conventional AISI 440C stainless steel bearings.
Gordon, Keith M.   +3 more
core   +1 more source

Viewfinder/tracking system for Skylab [PDF]

open access: yes, 1975
Basic component of system is infrared spectrometer designed for manual target acquisition, pointing and tracking, and data-take initiation. System incorporates three main subsystems which include: (1) viewfinder telescope, (2) control panel and ...
Casey, W. L.
core   +1 more source

Two gimbal bearing case studies: Some lessons learned [PDF]

open access: yes
Two troublesome, torque related problems associated with gimbal actuators are discussed. Large, thin section angular contact bearings can have a surprisingly high torque sensitivity to radial thermal gradients.
Loewenthal, Stuart H.
core   +1 more source

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