Results 11 to 20 of about 154,418 (337)

A Dynamic Hysteresis Model for TMR-Current Sensors Based on Probability Estimation of Hysteresis Operator and Its Switching Time

open access: yesApplied Sciences, 2022
Hysteresis is one of the main factors affecting the measurement accuracy of TMR sensors, especially in dynamic measurements. The commonly used Preisach hysteresis compensation model has some problems, such as complex modeling and difficulty in accurately
Yutao Li   +5 more
doaj   +1 more source

Computing Frequency-Dependent Hysteresis Loops and Dynamic Energy Losses in Soft Magnetic Alloys via Artificial Neural Networks

open access: yesMathematics, 2022
A neural network model to predict the dynamic hysteresis loops and the energy-loss curves (i.e., the energy versus the amplitude of the magnetic induction) of soft ferromagnetic materials at different operating frequencies is proposed herein. Firstly, an
Simone Quondam Antonio   +6 more
doaj   +1 more source

Dynamic Hysteresis Model and Control Methodology for Force Output Using Piezoelectric Actuator Driving

open access: yesIEEE Access, 2020
In the application of piezoelectric jet dispensing, piezoelectric ceramics and flexure hinges cooperate to form a piezoelectric actuator. The dispensing quality of the piezoelectric jet is closely associated with the output force of the piezoelectric ...
Jian Chen   +3 more
doaj   +1 more source

Neural Network Model for Magnetization Characteristics of Ferromagnetic Materials

open access: yesIEEE Access, 2021
The magnetic characteristics of silicon steel sheet 30Q120 under different AC frequencies were measured by an Epstein frame in order to analyze the effects of frequency variation on the hysteresis loop of ferromagnetic materials and compare the ...
Mingxing Tian   +2 more
doaj   +1 more source

Dynamic Torsional Stiffness of Reducers and Its Testing Method

open access: yesApplied Sciences, 2023
The torsional stiffness of the reducer is commonly assumed to be static and tested using the hysteresis curve method. However, practical engineering experience shows that the torsional stiffness is dynamic rather than static, and the hysteresis curve ...
Huiming Cheng   +3 more
doaj   +1 more source

A semi-compartmental model describing the pharmacokinetic-pharmacodynamic relationship [PDF]

open access: yesAnesthesia and Pain Medicine, 2020
Frequently, we encounter the phenomenon of hysteresis in kinetic-dynamic modeling. The hysteresis loop in the concentration-effect curve suggests a time discrepancy caused by various pharmacokinetic and pharmacodynamic factors. To collapse the hysteresis
Seunghee Ki
doaj   +1 more source

Model Reference Adaptive Control of Cross-Coupling Hysteresis in Piezoceramics With Dynamic Loads

open access: yesIEEE Access, 2022
During the ultraprecise cutting of micro-structure surface with fast tool servo (FTS), the hysteresis of piezoelectric actuators (PEAs) are affected by dynamic voltage excitations and real-time cutting force, which declines the servo accuracy and cutting
Lue Zhang   +3 more
doaj   +1 more source

Hysteresis Modeling and Compensation for a Fast Piezo-Driven Scanner in the UAV Image Stabilization System

open access: yesDrones, 2023
The fast piezo-driven scanner (FPDS) compensates for vibrations in the unmanned aerial vehicle (UAV) image stabilization system. However, the hysteresis nonlinearity reduces the positioning accuracy of the FPDS.
Jinlei Lu   +3 more
doaj   +1 more source

Dynamic Mechanical Hysteresis of Magnetorheological Elastomers Subjected to the Cyclic Loading and Periodic Magnetic Field

open access: yesFrontiers in Materials, 2019
Magnetorheological elastomer (MRE) is one of the most promising smart materials with excellent magnetic-control mechanical properties. This work focuses on the study of the dynamic mechanical properties of MRE under cyclic loadings and periodic magnetic ...
Yunfei Zhang   +6 more
doaj   +1 more source

Compound Control of Trajectory Errors in a Non-Resonant Piezo-Actuated Elliptical Vibration Cutting Device

open access: yesMicromachines, 2023
To improve the machining quality of the non-resonant elliptical vibration cutting (EVC) device, a compound control method for trajectory error compensation is proposed in this paper.
Chen Zhang   +4 more
doaj   +1 more source

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