Results 11 to 20 of about 1,153,600 (235)
Experimental comparison between proportional and PWM-solenoid valves controlled servopneumatic positioning systems [PDF]
, 2017 The performance of the Dynamical Adaptive Backstepping-Sliding Mode Control (DAB-SMC) scheme for positioning of a pneumatic cylinder regulated by two types of PWM-solenoid valves is experimentally investigated.
Abd. Rahman, Ramhuzaini +1 more
core +1 more source
A Miniature Robot for Isolating and Tracking Neurons in Extracellular Cortical Recordings [PDF]
, 2008 This paper presents a miniature robot device and control algorithm that can autonomously position electrodes in cortical tissue for isolation and tracking of extracellular signals of individual neurons.
Branchaud, Edward A. +3 more
core +1 more source
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2019 To increase recording density, a head positioning control system of a hard disk drive (HDD) has to compensate for vibration due to mechanical resonances of the system.
Shota YABUI +2 more
doaj +1 more source
Mirror formation control in the vicinity of an asteroid [PDF]
, 2008 Two strategies are presented for the positioning and control of a spacecraft formation designed to focus sunlight onto a point on the surface of asteroid, thereby sublimating the material and ejecting debris creating thrust.
Battin R. H. +11 more
core +2 more sources
Vibration control with thin-film-coil actuator for head-positioning system in hard disk drives
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2015 In a head-positioning system of hard disk drives, various mechanical resonances may degrade performance or stability of the control system. In these mechanical resonances, a torsional mode of a head-stack assembly (HSA), in which a resonant frequency is ...
Takenori ATSUMI +3 more
doaj +1 more source
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2018 In this paper, we present a robust controller design method for a magnetic-head positioning system in a hard disk drive (HDD) based on the H∞ control theory and the Robust Controller Bode (RCBode) plot.
Jun ITO, Takenori ATSUMI
doaj +1 more source
Relative positioning control of flexible structure for precise positioning stage
Mechanical Engineering Journal, 2020 Precise positioning technologies are widely used in industrial machines such as device manufacturing equipment. Many studies have been done on feedback control systems for precise positioning stages that improve accuracy by using sensor signal feedback ...
Hironori OGAWA +2 more
doaj +1 more source
Flying-height and tracking-position controls with thermal-positioning actuator in hard disk drives
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2017 To improve positioning accuracy of a magnetic head in hard disk drives (HDDs), a triple-stage-actuator system was developed with a thermal-positioning actuator for a magnetic-head-positioning system.
Takenori ATSUMI
doaj +1 more source
Head-Positioning Control Using Virtual Resonant Modes in a Hard Disk Drive
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2007 In conventional control systems in hard disk drives, it is difficult to compensate for disturbances above the primary mechanical resonance. In this paper, a design method that uses a virtual resonant mode in head-positioning systems of hard disk drives ...
Takenori ATSUMI
doaj +1 more source
Actuators, 2023 At present, the positioning control of the hydraulic support pushing systems in fully mechanized mining faces uses an electrohydraulic directional valve as the control component, while the current research mainly focuses on servo valves, proportional ...
Tengyan Hou +5 more
doaj +1 more source