Results 51 to 60 of about 2,421,287 (341)

Upper limits on stray force noise for LISA

, 2003
We have developed a torsion pendulum facility for LISA gravitational reference sensor ground testing that allows us to put significant upper limits on residual stray forces exerted by LISA-like position sensors on a representative test mass and to ...
A Cavalleri, Bender P, Bortoluzzi D, C D Hoyle, Dolesi R, Hueller M, Jafry Y, L Carbone, M Hueller, R Dolesi, S Vitale, Saulson P R, Smith G L, W J Weber, Weber W J, Weber W J   +15 more
core   +2 more sources

Insights Into the Antigenic Repertoire of Unclassified Synaptic Antibodies

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective We sought to characterize the sixth most common finding in our neuroimmunological laboratory practice (tissue assay‐observed unclassified neural antibodies [UNAs]), combining protein microarray and phage immunoprecipitation sequencing (PhIP‐Seq). Methods Patient specimens (258; 133 serums; 125 CSF) meeting UNA criteria were profiled;
Michael Gilligan, John R. Mills, Paulina Vargas, Naveen K. Paramasivan, Connie E. Lesnick, Eati Basal, Surendra Dasari, James P. Fryer, Shannon R. Hinson, Joseph Laporta, Amy Espinal, Dennis Fitzgerald, Carolina Garcia, Anna E. Morenkova, Paola Pergami, Anna Shah, Andrew Knight, Reghann LaFrance Corey, Vanda A. Lennon, Anastasia Zekeridou, Sean J. Pittock, Divyanshu Dubey, Andrew McKeon   +22 more
wiley   +1 more source

Strain Gauge Neural Network-Based Estimation as an Alternative for Force and Torque Sensor Measurements in Robot Manipulators

Applied Sciences, 2023
When a robotic manipulator interacts with its environment, the end-effector forces need to be measured to assess if a task has been completed successfully and for safety reasons. Traditionally, these forces are either measured directly by a 6-dimensional
Stanko Kružić, Josip Musić, Vladan Papić, Roman Kamnik   +3 more
doaj   +1 more source

Ultrasensitive torque detection with an optically levitated nanorotor

, 2019
Torque sensors such as the torsion balance enabled the first determination of the gravitational constant by Cavendish and the discovery of Coulomb's law. Torque sensors are also widely used in studying small-scale magnetism, the Casimir effect, and other
Ahn, Jonghoon, Bang, Jaehoon, Gao, Xingyu, Ju, Peng, Li, Tongcang, Xu, Zhujing   +5 more
core   +1 more source

A new sensorless method for switched reluctance motor drives [PDF]

, 1998
This paper describes a new method for indirect sensing of the rotor position in switched reluctance motors (SRMs) using pulse width modulation voltage control.
Gallegos-Lopez, G., Kjaer, P.C., Miller, T.J.E.   +2 more
core   +1 more source

Current Tracking Adaptive Control of Brushless DC Motors

International Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García, Axel Coronado‐Andrade, Gerardo Espinosa‐Pérez, Luis Alvarez‐Icaza   +3 more
wiley   +1 more source

Analysis and Design Optimization of a Compact and Lightweight Joint Torque Sensor for Space Manipulators

Advances in Mechanical Engineering, 2013
This paper describes the development of a compact and lightweight joint torque sensor for space manipulators. Space manipulators with torque sensors can not only apply force control approach to more precise and more dexterous space missions, but also ...
Nanzhe Wei, Hanxu Sun, Qingxuan Jia, Xue Ji, Hanlin Shi   +4 more
doaj   +1 more source

Active Return-to-Center Control Based on Torque and Angle Sensors for Electric Power Steering Systems

Sensors, 2018
This paper presents a complete control strategy of the active return-to-center (RTC) control for electric power steering (EPS) systems. We first establish the mathematical model of the EPS system and analyze the source and influence of the self-aligning ...
Pan-Pan Du, Hao Su, Gong-You Tang
doaj   +1 more source

Determination of the hydrodynamic performance of marine propellers using fibre Bragg gratings [PDF]

, 2019
Downloading of the abstract is permitted for personal use only. A critical aspect in the design of marine propellers is their hydrodynamic performance which, when evaluated experimentally, requires a number of parameters to be monitored at the same time,
Carlton, J., Fabian, M., Godfrey, I., Grattan, K. T. V., Javdani, S., Rente, B., Sun, T., Uceda, S., Young, B.   +8 more
core   +1 more source

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source