Results 61 to 70 of about 1,659,328 (166)
Multisegmented magnet array on voice coil motor in rotating data storage devices
, 2004 The swing-arm-type voice coil motor (VCM) is widely used as an actuator in rotating data storage devices. Recently, it has been found that to achieve a faster data transfer rate and a higher data storage areal density, a high performance actuator is ...
Yoon, HK +4 more
core +1 more source
Feasibility Study on the Use of a Voice Coil Motor Direct Drive Flow Rate Control Valve
, 2009 This paper considers the feasibility of a new type of voice coil motor direct drive flow control servo valve. The proposed servo valve controls the flow rate using only a direct measurement of the spool position.
Shuai Wu +4 more
core +1 more source
Actuators, 2019 In modern times, the design and optimization of different actuator systems for controlling a high-precision position control system represent a popular interdisciplinary research area.
Alamgir Hossain, Md. Arifur Rahman
doaj +1 more source
Hard Disk Drive with Voltage Driven Voice Coil Motor
, 2004 The paper presents a novel approach for driving a Voice Coil Motor (VCM) in a Hard Disk Drive (HDD), based on an adaptive voltage driver. The adaptation of the driver compensates for the variations of VCM resistance and is performed either during seek ...
OBOE, ROBERTO, G. MAIOCCHI, F. MARCASSA
core
A Quasiphysics Intelligent Model for a Long Range Fast Tool Servo
The Scientific World Journal, 2013 Accurately modeling the dynamic behaviors of fast tool servo (FTS) is one of the key issues in the ultraprecision positioning of the cutting tool. Herein, a quasiphysics intelligent model (QPIM) integrating a linear physics model (LPM) and a radial basis
Qiang Liu +4 more
doaj +1 more source
Design of a Single-Sided, Coreless, Flat-Type Linear Voice Coil Motor
, 2023 A voice coil motor is a type of permanent magnet linear motor, which is based on the Ampere force theorem. It has the following advantages: a simple structure, a small size, no cogging force, and a fast response time.
Wei Zhang +3 more
core +1 more source
Data-Based Youla Parameterization for Robust Disturbance Observer Design of VCM Motion Stage
ActuatorsRobust disturbance rejection in voice coil motor (VCM) motion stages is often limited by model uncertainties and the difficulty of obtaining accurate plant inverses.
Beibei Hou +4 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
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2018 To improve positioning accuracy of a magnetic head in hard disk drives (HDDs), a triple-stage-actuator system was proposed with a thermal positioning actuator for a magnetic head positioning system. This positioning system has three types of actuators: a
Takenori ATSUMI
doaj +1 more source
, 2015 This study presents the performance improvement in the position control of a medium-stroke voice coil motor (VCM) using a sliding-mode controller (SMC) with a system identification observer (SIO). The proposed VCM is developed with a full stroke of 24 mm,
Or, SW, Zou, Y, Pan, J, Cheung, NC
core +1 more source