Results 1 to 10 of about 372,769 (198)
Nonsingular Integral Terminal Sliding Mode Control for Resonant Frequency Tracking of Electromagnetic Acoustic Transducers (EMATs) Based on Fixed-Time Strategy [PDF]
Micromachines, 2022 Resonant frequency tracking control of electromagnetic acoustic transducers (EMATs) remains a challenge in terms of drifting working frequency and reduced conversion efficiency caused by working environment changes.
Haichao Yuan +6 more
doaj +2 more sources
Micromachined Resonant Frequency Tuning Unit for Torsional Resonator. [PDF]
Micromachines (Basel), 2017 Achieving the desired resonant frequency of resonators has been an important issue, since it determines their performance. This paper presents the design and analysis of two concepts for the resonant frequency tuning of resonators. The proposed methods are based on the stiffness alteration of the springs by geometrical modification (shaft-widening) or ...
Lee JI, Jeong B, Park S, Eun Y, Kim J.
europepmc +5 more sources
Resonant Frequency Tracking Scheme for
IEEE Access, 2023 To achieve optimal system performance, it’s recommended to operate an LLC resonant converter at its resonant frequency. However, in mass production, the resonant parameters of different products can deviate significantly.
Runhui He +6 more
doaj +1 more source
Complementary Therapies in Medicine, 2021 Introduction: Resonant frequency breathing is a coping skill used for relaxation. A resonant frequency varies from person to person and is only investigated by specialized medical institutions.
Hideaki Hasuo +2 more
doaj +1 more source
Negative-Frequency Resonant Radiation [PDF]
Physical Review Letters, 2012 Optical solitons or soliton-like states shed light to blue-shifted frequencies through a resonant emission process. We predict a mechanism by which a second propagating mode is generated. This mode, called negative resonant radiation originates from the coupling of the soliton mode to the negative frequency branch of the dispersion relation ...
E. Rubino +9 more
openaire +4 more sources
A New Method to Detect and Track the Resonance Frequency of Piezoelectric Transducers in Ultrasonic Power Supplies [PDF]
International Journal of Industrial Electronics, Control and Optimization, 2021 In this paper, a new method is developed to detect and track the resonance frequency of ultrasonic transducers. In order to have an acceptable performance of transducers, power supplies should be able to detect and track the resonance frequency ...
Ebrahim Taghvayi, Mohammad Karafi
doaj +1 more source
Spectral energy transfer of atmospheric gravity waves through sum and difference nonlinear interactions [PDF]
Annales Geophysicae, 2012 Nonlinear interactions of gravity waves are studied with a two-dimensional, fully nonlinear model. The energy exchanges among resonant and near-resonant triads are examined in order to understand the spectral energy transfer through interactions.
K. M. Huang +12 more
doaj +1 more source
Quantitative Design and Implementation of an Induction Cooker for a Copper Pan
IEEE Access, 2021 The nonferromagnetic pans with a low equivalent resistance are desired to generate sufficient power for heating by larger eddy current. First, Maxwell 3D is used to estimate the equivalent heating resistance of a copper pan and select the optimal number ...
Ming-Shi Huang +4 more
doaj +1 more source
Multi-frequency resonant clocks [PDF]
2015 IEEE International Symposium on Circuits and Systems (ISCAS), 2015 Clock distribution networks consume a significant portion of total chip power in high-performance designs. Resonant clocks are one proposed method to lower this power in modern designs as well as a fewer required clock buffers. Recent resonant solutions are limited to optimal performance at one particular frequency which is problematic since dynamic ...
Guthaus, Matthew +2 more
openaire +2 more sources
AIP Advances, 2021 Magnetic resonant wireless power transfer (MR-WPT) has several advantages over conventional wired underground power supply methods. However, MR-WPT inevitably encounters metal conductors, which reduce the system efficiency through the eddy loss induced ...
Yu Xu +4 more
doaj +1 more source