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Position Detection Method of Piezoelectric Driven Spherical Motor Based on Laser Detection [PDF]

open access: yesMicromachines, 2022
Laser detection technology has manypromising applications in the field of motor speed and position measurement. Accurate and fast measurement of position information of spherical rotor is very important for motor control.
Zheng Li   +5 more
doaj   +4 more sources

Characteristics Verification of an Independently Controllable Electromagnetic Spherical Motor [PDF]

open access: yesSensors, 2014
We have been developing electromagnetic spherical actuators capable of three-degree-of-freedom rotation. However, these actuators require complex control to realize simultaneous triaxial drive, because rotation around one axis interferes with rotation ...
Shuhei Maeda   +2 more
doaj   +5 more sources

Model and Property Analysis for a Ball-Hinged Three-Degree-of-Freedom Piezoelectric Spherical Motor [PDF]

open access: yesSensors
Multi-degree-of-freedom piezoelectric motors have the advantages of high torque and resolution, simple structure, and direct drive, which are widely used in robot wrist joints, deep-sea mechanisms, medical equipment, and space mechanisms.
Zhenyu Wang   +4 more
doaj   +2 more sources

Neuroprotective, eco-friendly iron oxide nanoparticles to alleviate Parkinson’s disease symptoms and improve nursing care [PDF]

open access: yesFrontiers in Neuroscience
BackgroundParkinson’s disease (PD) involves motor impairment and neurochemical changes, necessitating neuroprotective agents to enhance nursing care outcomes.MethodsIron oxide nanoparticles (IONPs) were biosynthesized via green chemistry and ...
Shuangyan Chen, Ting Jiang
doaj   +2 more sources

Investigation on the Measurement Method for Output Torque of a Spherical Motor

open access: yesApplied Sciences, 2020
The output torque is an important performance indicator of a motor. Due to the special structure of a permanent magnet spherical motor (PMSM), it is difficult to measure its torque.
Yan Wen   +5 more
doaj   +3 more sources

A Permanent Magnet Synchronous Spherical Motor for High-Mobility Servo-Actuation

open access: yesMachines, 2022
The development of direct-drive spherical motors offers a potential solution to the limitations of conventional multiple degree-of-freedom (DOF) actuators, which typically utilize single-DOF joints (rotational and/or prismatic), arranged in series or ...
Jay A. Shah   +3 more
doaj   +1 more source

Analytical Investigation on Torque of Three-Degree-of-Freedom Electromagnetic Actuator for Image Stabilization

open access: yesApplied Sciences, 2021
In keeping with consumers’ preferences for electromagnetic motors of ever smaller power consumption, it is necessary to improve the power efficiency of the electromagnetic motors used in unmanned aerial vehicles and robots without sacrificing their ...
Chien-Sheng Liu   +2 more
doaj   +1 more source

Sensorless Posture Detection of Reluctance Spherical Motor Based on Mutual Inductance Voltage

open access: yesApplied Sciences, 2021
In this paper, a sensorless rotor posture detection method based on the mutual inductance voltage of the stator coil is proposed to simplify the position detection element of a reluctance spherical motor.
Jiazi Xu   +6 more
doaj   +1 more source

Development and performance analysis of novel design 3-DOF non-integrated runner permanent magnet spherical motor

open access: yesEngineering Science and Technology, an International Journal, 2023
The main objective of this research is to present a novel design of three degrees of freedom (DOF) non-integrated runner permanent magnet spherical motor (NR-PMSM).
Ahmet Saygın Öğülmüş   +1 more
doaj   +1 more source

Design, 3D FEM Simulation and Prototyping of a Permanent Magnet Spherical Motor

open access: yesActuators, 2021
In recent years, large tilt angles, uniform magnetic flux distributions, strong forces, and large torques for motors have increasingly become important for robotics, biomedical, and automotive applications that have multi-degrees of freedom (MDOFs ...
Umut Yusuf Gündoğar   +1 more
doaj   +1 more source

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