Conferences related to Impedance

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2020 IEEE 16th International Workshop on Advanced Motion Control (AMC)

AMC2020 is the 16th in a series of biennial international workshops on Advanced Motion Control which aims to bring together researchers from both academia and industry and to promote omnipresent motion control technologies and applications.


2020 IEEE International Conference on Plasma Science (ICOPS)

IEEE International Conference on Plasma Science (ICOPS) is an annual conference coordinated by the Plasma Science and Application Committee (PSAC) of the IEEE Nuclear & Plasma Sciences Society.


2020 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM)

The scope of the 2020 IEEE/ASME AIM includes the following topics: Actuators, Automotive Systems, Bioengineering, Data Storage Systems, Electronic Packaging, Fault Diagnosis, Human-Machine Interfaces, Industry Applications, Information Technology, Intelligent Systems, Machine Vision, Manufacturing, Micro-Electro-Mechanical Systems, Micro/Nano Technology, Modeling and Design, System Identification and Adaptive Control, Motion Control, Vibration and Noise Control, Neural and Fuzzy Control, Opto-Electronic Systems, Optomechatronics, Prototyping, Real-Time and Hardware-in-the-Loop Simulation, Robotics, Sensors, System Integration, Transportation Systems, Smart Materials and Structures, Energy Harvesting and other frontier fields.


2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe)

Energy conversion and conditioning technologies, power electronics, adjustable speed drives and their applications, power electronics for smarter grid, energy efficiency,technologies for sustainable energy systems, converters and power supplies


2019 41st Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)

The conference program will consist of plenary lectures, symposia, workshops andinvitedsessions of the latest significant findings and developments in all the major fields ofbiomedical engineering.Submitted papers will be peer reviewed. Accepted high quality paperswill be presented in oral and postersessions, will appear in the Conference Proceedings and willbe indexed in PubMed/MEDLINE & IEEE Xplore


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Periodicals related to Impedance

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Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Antennas and Wireless Propagation Letters, IEEE

IEEE Antennas and Wireless Propagation Letters (AWP Letters) will be devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation.


Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Automatic Control, IEEE Transactions on

The theory, design and application of Control Systems. It shall encompass components, and the integration of these components, as are necessary for the construction of such systems. The word `systems' as used herein shall be interpreted to include physical, biological, organizational and other entities and combinations thereof, which can be represented through a mathematical symbolism. The Field of Interest: shall ...


Biomedical Circuits and Systems, IEEE Transactions on

The Transactions on Biomedical Circuits and Systems addresses areas at the crossroads of Circuits and Systems and Life Sciences. The main emphasis is on microelectronic issues in a wide range of applications found in life sciences, physical sciences and engineering. The primary goal of the journal is to bridge the unique scientific and technical activities of the Circuits and Systems ...


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Most published Xplore authors for Impedance

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Xplore Articles related to Impedance

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Realization of Four-Terminal-Pair Capacitors as Reference Standards of Impedance at High Frequency Using Impedance-Matrix Method

IEEE Transactions on Instrumentation and Measurement, 2017

The four-terminal-pair air capacitors of nominal values 1000 and 100 pF have been realized as reference standards of impedance upto 10 MHz using impedance- matrix method. The reported work has been successfully practically implemented at the National Physical Laboratory India (NPLI) in the direction of establishing metrological traceability of capacitance standards at high frequency (HF). The realization procedure is based ...


Electrical impedance tomography/applied potential tomography-physiological imaging of the lungs

IEE Colloquium on Electrical Impedance Tomography/Applied Potential Tomography, 1992

The author discusses clinical applications of electrical impedance tomography using the Sheffield applied potential tomography system. The examples given are: diagnosis of ventilation deflects; monitoring intrathoracic fluid volumes; continuous monitoring of ventilation.<<ETX>>


IEEE Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Grounding System - Redline

IEEE Std 81-2012 (Revision of IEEE Std 81-1983) - Redline, 2012

Practical test methods and techniques are presented for measuring the electrical characteristics of grounding systems. Topics addressed include safety considerations, measuring earth resistivity, measuring the power system frequency resistance or impedance of the ground system to remote earth, measuring the transient or surge impedance of the ground system to remote earth, measuring step and touch voltages, verifying the integrity of ...


Online battery impedance spectrum measurement method

2016 IEEE Applied Power Electronics Conference and Exposition (APEC), 2016

The electrochemical impedance spectroscopy (EIS) measurement is a method used for offline battery impedance spectrum measurement, which usually requires a specialized and costly equipment. Recent work presented an online method to measure the AC impedance of batteries by utilizing the DC-DC power converter that usually follows the battery for regulation purposes. In this method, the duty cycle of the power ...


A technical review of various bioelectric impedance methods for health monitoring

2018 IEEE Long Island Systems, Applications and Technology Conference (LISAT), 2018

Depending upon the tissue configuration, structures, physiological, pathological status, and injected electrical energy, the biological tissue produce complex electrical impedance when alternating electrical signal is applied. So the bioelectrical impedance techniques can be used to find various characteristics of tissues and diagnose disease non-invasively. There is a wide range of application of bio electric impedance in healthcare for disease diagnosis ...


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Educational Resources on Impedance

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IEEE-USA E-Books

  • Realization of Four-Terminal-Pair Capacitors as Reference Standards of Impedance at High Frequency Using Impedance-Matrix Method

    The four-terminal-pair air capacitors of nominal values 1000 and 100 pF have been realized as reference standards of impedance upto 10 MHz using impedance- matrix method. The reported work has been successfully practically implemented at the National Physical Laboratory India (NPLI) in the direction of establishing metrological traceability of capacitance standards at high frequency (HF). The realization procedure is based on the determination of effective capacitance of each capacitor as a function of frequency upto 10 MHz. It involves single-port-impedance measurements at HF using RF impedance analyzer and capacitance measurements at 1 kHz using ultraprecision capacitance bridge. The least squares data approximation method is thereafter used to extrapolate the resistive and inductive components of the measured HF single-port-impedances to lower frequencies down to 1 kHz. The measurement automation program has been developed to measure the single-port impedances at set of frequencies between 40 and 100 MHz using impedance analyzer. The air capacitors characterized using impedance-matrix will be used as reference standards of impedance at NPLI to calibrate impedance bridges, LCR meters, and impedance analyzers upto 10 MHz.

  • Electrical impedance tomography/applied potential tomography-physiological imaging of the lungs

    The author discusses clinical applications of electrical impedance tomography using the Sheffield applied potential tomography system. The examples given are: diagnosis of ventilation deflects; monitoring intrathoracic fluid volumes; continuous monitoring of ventilation.<<ETX>>

  • IEEE Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Grounding System - Redline

    Practical test methods and techniques are presented for measuring the electrical characteristics of grounding systems. Topics addressed include safety considerations, measuring earth resistivity, measuring the power system frequency resistance or impedance of the ground system to remote earth, measuring the transient or surge impedance of the ground system to remote earth, measuring step and touch voltages, verifying the integrity of the grounding system, reviewing common methods for performing ground testing, reviewing instrumentation characteristics and limitations, and reviewing various factors that can distort test measurements.

  • Online battery impedance spectrum measurement method

    The electrochemical impedance spectroscopy (EIS) measurement is a method used for offline battery impedance spectrum measurement, which usually requires a specialized and costly equipment. Recent work presented an online method to measure the AC impedance of batteries by utilizing the DC-DC power converter that usually follows the battery for regulation purposes. In this method, the duty cycle of the power converter is sinusoidally perturbed, each time at a given frequency, in order to generate sinusoidally varying voltage and current in the battery to be used for AC impedance measurements/calculations at a given frequency. This paper presents a development of a method which measures the impedance spectrum of a battery for different frequency values at the same time rather than at one single frequency each time. This provides the advantages of being able to measure a spectrum of frequencies online under the same battery conditions such as State-Of-Charge (SOC) and temperature and with faster speed and shorter disturbance time duration. The advantages of the original method are also maintained such as there is no need for additional AC signal injection circuits.

  • A technical review of various bioelectric impedance methods for health monitoring

    Depending upon the tissue configuration, structures, physiological, pathological status, and injected electrical energy, the biological tissue produce complex electrical impedance when alternating electrical signal is applied. So the bioelectrical impedance techniques can be used to find various characteristics of tissues and diagnose disease non-invasively. There is a wide range of application of bio electric impedance in healthcare for disease diagnosis and monitoring of body vital condition, food processing, chemical engineering, material engineering, civil engineering, geophysics and geosciences and various other industrial applications. Due to this we feel to review the fundamental aspects of various electrical bio impedance methods. Over past few decades, various bioelectrical impedance based methods are used for biological tissue characterization non invasively. These techniques are bio-electrical impedance analysis (BIA), electrical impedance cardiography (ICG), electrical impedance tomography (EIT), electrical impedance plethysmography (EIPG), electrical impedance spectroscopy (EIS), Electrical impedance mammography (EIM) and magnetic induction tomography (MIT). This paper consists of comparison between different bioelectric impedance techniques used for health monitoring.

  • Resonant characteristics of impedance monopole placed on flat infinite metal screen

    The algorithm for the calculation of the resonant characteristics of an impedance monopole placed on ideally conducting infinite screen is developed with using the asymptotic expressions for a current and an input impedance of the thin impedance wire dipoles with electric length 0.4 <; 21 / λ<; 0.6 in the free space. On the basis of the numerical calculations the detailed analysis of resonant properties of the impedance dipoles depending on their geometrical sizes and the normalized distributed surface impedance is carried out. The dependencies of the resonant surface impedance values on a relative thickness and the length of the monopoles are presented. The influence of the type of the impedance on the resonant monopole length is shown.

  • A Kalman filter approach to track fast impedance changes in electrical impedance tomography

    In electrical impedance tomography (EIT), an estimate for the cross-sectional impedance distribution is obtained from the body by using current and voltage measurements made from the boundary. All well-known reconstruction algorithms use a full set of independent current patterns for each reconstruction. In some applications, the impedance changes may be so fast that information on the time evolution of the impedance distribution is either lost or severely blurred. Here, the authors propose an algorithm for EIT reconstruction that is able to track fast changes in the impedance distribution. The method is based on the formulation of EIT as a state-estimation problem and the recursive estimation of the state with the aid of the Kalman filter. The performance of the proposed method is evaluated with a simulation of human thorax in a situation in which the impedances of the ventricles change rapidly. The authors show that with optimal current patterns and proper parameterization, the proposed approach yields significant enhancement of the temporal resolution over the conventional reconstruction strategy.

  • Computation of the Impedance Matrix of Multiconductor Transmission Lines Using High-Order Surface Impedance Boundary Conditions

    High-order surface impedance boundary conditions (SIBCs) are coupled to the boundary element method to produce a new integral formulation technique for the computation of the impedance matrix of multiconductor transmission lines (MTLs). The method extends the use of the Leontovich SIBC into lower frequencies and does so quickly and efficiently in that the solution of the integral equations need only be computed once, whereas the solution may be obtained over the whole applicable frequency domain. The current formulation is theoretically rigorous and applies to arbitrarily smooth curved surfaces. The method is applied to the calculation of per-unit-length (p.u.l.) parameters in lossy MTLs of arbitrary cross sections, without taking into account the earth return path or the surrounding media resistivity.

  • A Comparison of Two- and Four-Electrode Techniques to Characterize Blood Impedance for the Frequency Range of 100 Hz to 100 MHz

    Measurement setups that characterize the impedance of suspensions of blood over the wide frequency range of 100 Hz to 100 MHz are presented in this paper. The performance of the two- and four-electrode techniques have been compared and evaluated. By applying a combination of the two measurement techniques the best result is achieved when taking into account the main nonidealities, such as electrode polarization impedance and parasitic capacitances. It has been found that the conventional three-element model for the impedance of blood can be used for frequencies up to 1 MHz. For frequencies exceeding 1 MHz, an extended model is introduced where a constant phase angle element is used for modeling the cell membrane and a capacitor <i>C<sub>liq</sub> </i> is added for modeling the electrical capacitance of water in blood.

  • A symmetrical two-way power divider with impedance transforming property

    Power divider is one of the basic components in microwave systems such as amplifiers and antenna feeding networks. Conventional power divider has fixed port impedance such as 25Ω and 50 Ω, and extra impedance matching network is designed to the match for various load impedance. The impedance transformation network will increase the size and introduce extra insertion loss to the circuit. In this paper, a symmetrical two-way power divider with simple structure and impedance transforming property as well as high isolation between two output ports is proposed. The novel structure utilizes shunt stub and series capacitor to cancel the imaginary part of the output impedance. Closed form equations are derived based on the even-odd mode method to analyze the proposed structure, and three experimental power dividers with different output impedance are simulated, fabricated and characterized. The measurement results match well with the simulation results.



Standards related to Impedance

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(Replaced) IEEE Standard VHDL Language Reference Manual

his standard revises and enhances the VHDL language reference manual (LRM) by including a standard C language interface specification; specifications from previously separate, but related, standards IEEE Std 1164 -1993,1 IEEE Std 1076.2 -1996, and IEEE Std 1076.3-1997; and general language enhancements in the areas of design and verification of electronic systems.


IEEE Guide for Measurement of Impedance and Safety Characteristics of Large, Extended or Interconnected Grounding Systems


IEEE Standard Requirements for Instrument Transformers

This standard is intended for use as a basis for performance and interchangeability of equipment covered, and to assist in the proper selection of such equipment. Safety precautions are also addressed. This standard covers certain electrical, dimensional, and mechanical characteristics, and takes into consideration certain safety features of current and inductively coupled voltage transformers of types generally used in the ...