Results 91 to 100 of about 9,734 (275)

Effect of winding harmonics on the asynchronous torque of a single-phase line start permanant-magnet motor [PDF]

open access: yes, 2005
This paper presents an analytical method for calculating the effect of winding harmonics on the asynchronous torque of a single-phase line-start permanent-magnet motor.
daSilva, C.   +5 more
core   +1 more source

Miniaturized Magnetic Tip Design for Endoluminal Vine Robot Navigation

open access: yesAdvanced Robotics Research, EarlyView.
A magnetic tip mount is designed for a miniaturized 7 mm soft‐growing vine robot to enable wireless magnetic steering and onboard imaging, while preserving a 3 mm working channel. The internal–external ring magnets design balances magnetic attachment with low eversion pressure. Experiments demonstrate ±90° steering, 34 mm bending radius, and successful
Andrea Yanez Trujillo   +4 more
wiley   +1 more source

Compensation for rotor position estimation error due to cross-coupling magnetic saturation in signal injection based sensorless control of PM brushless AC motors [PDF]

open access: yes, 2007
This paper proposes a simple method for reducing the rotor position estimation error caused by cross-coupling magnetic saturation between the d- and q-axes when signal injection based sensorless control is applied to a brushless AC (BLAC) motor.
Bingham, Chris, Howe, D, Li, Y, Zhu, Z Q
core   +1 more source

Design and Modeling of a High‐Displacement, Skin‐Integrated Flexible Electromagnetic Actuator for Haptic Interfaces in Virtual Reality

open access: yesAdvanced Robotics Research, EarlyView.
A flexible, skin‐integrated electromagnetic actuator is developed for wearable virtual/augmented reality (VR/AR) haptic systems. A tunable design model enables control over displacement and resonance frequency. The system is validated through a custom VR application with a 6 × 4 actuator array, demonstrating real‐time, spatially targeted tactile ...
Naji Tarabay   +9 more
wiley   +1 more source

Bragg crystal monochromators

open access: yesMajor Reference Works, Page 290-301., 2021
International Tables for Crystallography is the definitive resource and reference work for crystallography and structural science.

Each of the eight volumes in the series contains articles and tables of data relevant to crystallographic research and to applications of crystallographic methods in all sciences concerned with the ...
John P. Sutter C. Chantler   +2 more
wiley  

+1 more source

INTELLIGENT CONTROL OF INTERIOR PERMANENT MAGNET SYNCHRONOUS MOTOR DRIVE

open access: yesElectrica, 2009
This paper presents a novel fast speed response control strategy for the interior permanent magnet synchronous motor (IPMSM) drive system using intelligent control.
Naruttam Kumar ROY   +3 more
doaj   +2 more sources

Improved signal injection based sensorless technique for PM brushless AC drives [PDF]

open access: yes, 2007
The accuracy of rotor position estimation in the conventional signal injection based sensorless control of permanent magnet brushless AC drives depends on the load current.
Bingham, Chris   +3 more
core   +1 more source

Optimization of Magnetic Milli‐Spinner for Robotic Endovascular Intervention

open access: yesAdvanced Robotics Research, EarlyView.
This work presents the design optimization of a multifunctional magnetic milli‐spinner for high‐speed propulsion and efficient clot debulking. The optimized design achieves an ultrafast swimming velocity of 55 cm/s (≈175 body lengths/s) in saline water, enabling stable upstream swimming against strong physiological flows and establishing magnetic milli‐
Lu Lu   +3 more
wiley   +1 more source

Sensorless flux-weakening control of permanent-magnet brushless machines using third harmonic back EMF [PDF]

open access: yes, 2004
The sensorless control of brushless machines by detecting the third harmonic back electromotive force is a relatively simple and potentially low-cost technique.
Howe, D., Shen, J.X., Zhu, Z.Q.
core   +1 more source

Cogging Torque Minimization Strategies in Interior Permanent Magnet Synchronous Motors

open access: yesIEEE Access
Cogging torque in interior permanent magnet synchronous motors (IPMSMs) is caused by variation in magnetic reluctance between permanent magnets and stator slot openings. It can result in vibration, acoustic noise, speed ripple, and possible mechanical resonance in this family of electric machines. Minimization of cogging torque is of high importance in
Milad Bahrami-Fard   +6 more
openaire   +2 more sources

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