Results 11 to 20 of about 106,133 (264)
Experimental assessment of harmonic contributions using a ternary pulse sequence [PDF]
Serbian Journal of Electrical Engineering, 2021 Harmonic contributions of utility and customer may feature significant variations due to network switchings and changing operational modes. In order to correctly define the impacts on the grid voltage distortion the frequency dependent impedance
Bulycheva Evgeniia, Yanchenko Sergey
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On-Line EIS Measurement for High-Power Fuel Cell Systems Using Simulink Real-Time
Energies, 2021 Impedance measurements by EIS are used to build a physical circuit-based model that enables various fault diagnostics and lifetime predictions. These research areas are becoming increasingly crucial for the safety and preventive maintenance of fuel cell ...
Soo-Bin Han +5 more
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Impedance measurements of components for the ALS [PDF]
Proceedings of International Conference on Particle Accelerators, 2002 The high current and short bunch length of the ALS beam make the machine susceptible to beam instabilities over a frequency range extending to 13 GHz and beyond. All components of the storage ring have been carefully designed to minimize the impedance presented to the beam, and assemblies have been laid out to avoid resonant enclosures between ...
Corlett, J N, Rimmer, R A
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Characterization of Ag/AgCl Dry Electrodes for Wearable Electrophysiological Sensing
Frontiers in Electronics, 2022 With the rising need for on-body biometric sensing, the development of wearable electrophysiological sensors has been faster than ever. Surface electrodes placed on the skin need to be robust in order to measure biopotentials from the body reliably and ...
Min Suk Lee +6 more
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On sensitivity in transfer impedance measurements [PDF]
Journal of Electrical Bioimpedance, 2018 Abstract The term sensitivity is sometimes misused when discussing volume impedance measurements. This is a critique of the name of the quantity sensitivity, as well as pointing out how the term easily can be misinterpreted. To resolve the issue, a shift of focus towards volume impedance density, which is a more useful quantity, is ...
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Real-time harmonic identification under varying grid conditions [PDF]
Serbian Journal of Electrical Engineering, 2021 One of the challenges of the power quality management is a need for reliable harmonic identification in grids with multiple non-linear loads. This paper proposes a novel method to accurately determine time-varying harmonic contributions of non ...
Bulycheva Evgeniia A. +1 more
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A Comparison of Online Electrochemical Spectroscopy Impedance Estimation of Batteries
IEEE Access, 2018 This paper compares the methods of undertaking on-line electrochemical impedance spectroscopy that have been published in the literature. This paper describes the different published methodologies and sorts these into categories.
Mina Abedi Varnosfaderani +1 more
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A broadband multistate interferometer for impedance measurement
Journal of Telecommunications and Information Technology, 2005 We present a new four-state interferometer for measuring vectorial reflection coefficient from 50 to 1800 MHz. The interferometer is composed of a four-state phase shifter, a double-directional coupler and a spectrum analyzer with an in-built tracking ...
Piotr Szymański
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A novel AC chopper integrated with active measurement of wideband impedance for wind power system
IET Power Electronics, 2023 Large‐scale wind farms are susceptible to oscillations like any other power systems with high penetration of power electronics, whose characteristics of wideband impedance hold the key to resolving this issue.
Yan Shi +4 more
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Biosensors, 2017 In this study, we describe a microbead-based method using dielectrophoresis (DEP) for the fast detection of DNA amplified by polymerase chain reaction (PCR).
Michihiko Nakano +2 more
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