Results 1 to 10 of about 676 (177)

Three-Degree-of-Freedom Voice Coil Actuator Driven by a Four-Phase Current [PDF]

open access: yesSensors, 2022
Camera attitude control systems for robots require a compact structure and high responsiveness. However, due to the combination structure of several actuators, the camera attitude control system is large.
Akira Heya, Katsuhiro Hirata
doaj   +4 more sources

Driving complex flow waveforms with a linear voice coil actuator. [PDF]

open access: yesBiomicrofluidics, 2019
Oscillatory and pulsatile fluid flows for use in microfluidic applications were generated using a deformable chamber driven by a low cost linear voice coil actuator. Compliance in the fluidic system originating in the deformable chamber and the fluidic tubing produced a strong frequency dependence in the relationship between the system’s input and the ...
Young DC, Brehm JM, Scrimgeour J.
europepmc   +4 more sources

FriiTriga, a triggered controller with an optical beam shutter using a hard disk drive voice-coil actuator [PDF]

open access: yesHardwareX
We present in this article the complete setup to build a triggered controller with a mechanical optical shutter. The system is a low cost, Do-It-Yourself, and easy to implement setup with three functionalities: Manual mode, direct mode with TTL signal ...
Dam-Bé L. Douti   +2 more
doaj   +2 more sources

Design and Dynamic Modeling of a 3-RPS Compliant Parallel Robot Driven by Voice Coil Actuators

open access: yesMicromachines, 2021
In order to increase the driving force of the voice coil actuator while reducing its size and mass, the structural parameters of the coil and magnet in the actuator are optimized by combing Biot–Savart law with Lagrangian interpolation. A 30 mm × 30 mm ×
Chuchao Wang   +5 more
doaj   +1 more source

Design and Simulation of Novel 3-DOF Spherical Voice Coil Motor

open access: yesActuators, 2021
Multi-DOF motion is realized in the eyes and joints of robots mostly through the combination of multiple one-degree-of-freedom (1-DOF) motors. However, this results in reduced efficiency, a large volume, reduced response speed, and inaccurate positioning.
Yi-Hsuan Lin   +2 more
doaj   +1 more source

Nonlinear characteristics of the driving model of the coaxial integrated macro–micro composite actuator [PDF]

open access: yesMechanical Sciences, 2022
Nonlinearity is one of the important factors affecting the positioning accuracy of the macro–micro composite actuator. To improve the positioning accuracy of the driving model of the macro–micro composite actuator, this paper combines the research ...
C. Yu   +5 more
doaj   +1 more source

Design, Development and Implementation of the Position Estimator Algorithm for Harmonic Motion on the XY Flexural Mechanism for High Precision Positioning

open access: yesSensors, 2020
This article presents a novel concept of the position estimator algorithm for voice coil actuators used in precision scanning applications. Here, a voice coil motor was used as an actuator and a sensor using the position estimator algorithm, which was ...
Mahesh Shewale   +3 more
doaj   +1 more source

Analysis of High Force Voice Coil Motors for Magnetic Levitation

open access: yesActuators, 2020
A voice coil motor is a simple and linear electromagnetic actuator. Since it has a non-contact force and very low stiffness, it is widely used for precision positioning devices including magnetic levitation systems. During magnetic levitation, high force
Jae-Yeol Kim, Dahoon Ahn
doaj   +1 more source

Design of Coaxial Integrated Macro–Micro Composite Actuator With Long-Stroke and High-Precision

open access: yesIEEE Access, 2022
Macro–micro composite-driving structures are widely used in many applications, and research has been done to improve the associated driving stroke and positioning accuracy. This article proposes a novel macro–micro composite actuator (MMCA)
Caofeng Yu   +5 more
doaj   +1 more source

High-resolution visible imaging with piezoelectric deformable secondary mirror: experimental results at the 1.8-m adaptive telescope

open access: yesOpto-Electronic Advances, 2023
Integrating deformable mirrors within the optical train of an adaptive telescope was one of the major innovations in astronomical observation technology, distinguished by its high optical throughput, reduced optical surfaces, and the incorporation of the
Youming Guo   +9 more
doaj   +1 more source

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