Results 11 to 20 of about 101,726 (243)
On the Effectiveness of Impedance-Based Fingerprint Presentation Attack Detection
Sensors, 2021 Within the last few decades, the need for subject authentication has grown steadily, and biometric recognition technology has been established as a reliable alternative to passwords and tokens, offering automatic decisions.
Jascha Kolberg +6 more
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Microfabricated Thin Film Impedance Sensor & AC Impedance Measurements [PDF]
Sensors, 2010 Thin film microfabrication technique was employed to fabricate a platinum based parallel-electrode structured impedance sensor. Electrochemical impedance spectroscopy (EIS) and equivalent circuit analysis of the small amplitude (±5 mV) AC impedance measurements (frequency range: 1 MHz to 0.1 Hz) at ambient temperature were carried out.
Yu, Liu
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A Method for Monitoring State-of-Charge of Lithium-Ion Cells Using Multi-Sine Signal Excitation
Batteries, 2021 In this paper, a method for monitoring SoC of a lithium-ion battery cell through continuous impedance measurement during cell operation is introduced.
Jonghyeon Kim, Julia Kowal
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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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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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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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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 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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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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