Results 31 to 40 of about 22,539 (211)
LPV Control and Virtual-Sensor-Based Fault Tolerant Strategies for a Three-Axis Gimbal System
Sensors, 2022 This paper deals with the LPV control of a three-axis gimbal including fault-tolerant capabilities. First, the derivation of an analytical model for the considered system based on the robotics Serial-Link (SL) theory is derived.
Ariel Medero, Vicenç Puig
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Известия высших учебных заведений России: Радиоэлектроника, 2022 Introduction. Two-axis gimbal systems are applied for stabilizing and controlling the line of sight (LOS) of an optical or imaging system mounted on a moving vehicle.
Ngoc Hung Nguyen +2 more
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Fundamental study on a thin-film ae sensor for measurement of behavior of a multi-pad contact slider [PDF]
, 1996 To study the fundamental dynamic characteristics of a multi-pad slider for contact recording, we developed a thin-film piezoelectric acoustic emission array sensor on an Si-suspension with an array pattern similar to that of contact pads.
Burger, G.J. +3 more
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Designing, Testing and Evaluation of Single Gimbal Control Moment Gyro for Microsatellite [PDF]
فصلنامه علوم و فناوری فضایی, 2009 In this paper, a designing procedure of Single Gimbal Control Moment Gyro (SGCMG) for performing an agile slew maneuver in a microsatellite is described, then a prototype is fabricated and finally the test results are presented.
A. R. Aghalari +3 more
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A novel single-gimbal control moment gyroscope driven by an ultrasonic motor
Advances in Mechanical Engineering, 2019 This article presents a structure-compacted single-gimbal control moment gyroscope, which is directly driven by an ultrasonic motor. The momentum wheel and the ultrasonic motor are designed and optimized based on software simulation.
Song Pan, Zhangfan Xu, Chunsheng Zhao
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IFAC-PapersOnLine, 2018 Abstract Modern Earth observation spacecrafts require high agility to maneuver with larger torque which eventually needs CMGs, as Reaction Wheels cannot meet the demand of such large torques. In order to obtain high-accuracy pointing control with CMG, extremely precise gimbal control is necessary.
Chiranjib Guha Majumder +3 more
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Wildlife Biology, EarlyView.Resource managers require accurate estimates of large herbivore abundance and demography to maintain ecological integrity. Common methods to count these species, including observations from low altitude helicopter flights, may conflict with other protected area management objectives and struggle to produce precise estimates for more cryptic species. To
Hanem G. Abouelezz, N. Thompson Hobbs
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Aircraft body-axis rotation measurement system [PDF]
, 1983 A two gyro four gimbal attitude sensing system having gimbal lock avoidance is provided with continuous azimuth information, rather than roll information, relative to the magnetic cardinal headings while in near vertical attitudes to allow recovery from ...
Cowdin, K. T.
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Wildlife Biology, EarlyView.Roe deer is a species that hides their neonates as an anti‐predator strategy. This may prove efficient against mammalian predators, such as the red fox; however, it might be an ecological trap as large numbers of fawns are killed by tractors with harvesters each year during grass harvest.
Thomas Vogler +2 more
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A Non-Pyrotechnic Heavy-Load Hold Down Release Mechanism for Space Gimbals
AerospaceContinuously rotating gimbals for scanning purposes are widely used in space applications. For high-precision gimbals, it is essential to lock the gimbal before launch and unlock it on orbit.
Jun Jiang +6 more
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