Conferences related to Permeability

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2020 IEEE International Magnetic Conference (INTERMAG)

INTERMAG is the premier conference on all aspects of applied magnetism and provides a range of oral and poster presentations, invited talks and symposia, a tutorial session, and exhibits reviewing the latest developments in magnetism.


2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII)

The world's premiere conference in MEMS sensors, actuators and integrated micro and nano systems welcomes you to attend this four-day event showcasing major technological, scientific and commercial breakthroughs in mechanical, optical, chemical and biological devices and systems using micro and nanotechnology.The major areas of activity in the development of Transducers solicited and expected at this conference include but are not limited to: Bio, Medical, Chemical, and Micro Total Analysis Systems Fabrication and Packaging Mechanical and Physical Sensors Materials and Characterization Design, Simulation and Theory Actuators Optical MEMS RF MEMS Nanotechnology Energy and Power


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


2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

Science, technology and applications spanning the millimeter-waves, terahertz and infrared spectral regions


2019 IEEE 69th Electronic Components and Technology Conference (ECTC)

premier components, packaging and technology conference


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Periodicals related to Permeability

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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


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Components and Packaging Technologies, IEEE Transactions on

Component parts, hybrid microelectronics, materials, packaging techniques, and manufacturing technology.


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Most published Xplore authors for Permeability

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Xplore Articles related to Permeability

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Laboratory investigation of permeability characteristics of dredged fill in the Qianwan area Shenzhen

2011 International Conference on Electric Technology and Civil Engineering (ICETCE), 2011

The existing disadvantage of traditional permeability test apparatus in determining the permeability of high water content and large void ratio dredged fill is overcome by GDS consolidation test apparatus, which can directly measures permeability coefficient after consolidation tests under different consolidation pressures. Laboratory permeability tests are performed on dredged fill of high water content from 110 percent to 150 percent ...


Measurement methods of complex permittivity and permeability of sheet samples in free space in microwave range

2010 20th International Crimean Conference "Microwave & Telecommunication Technology", 2010

A set of measurement methods of complex permittivity and permeability of sheet samples in free space in microwave range is elaborated. The measurements are realized in wide frequency band for comparatively small samples (compared to several wavelengths) with high accuracy due to using of Time Domain and compensation procedure on diaphragmatic horn antennas.


A new method for evaluating the coefficient of consolidation

2011 International Conference on Electric Technology and Civil Engineering (ICETCE), 2011

Based on Therzaghi's one dimensional consolidation theory, a new method for evaluating coefficient of consolidation is proposed in this paper, which is more convenient than Casagrande's log t method and Taylor's √t method. Consolidation and permeability combined tests by GDS advanced consolidation testing system show that the coefficient of consolidation derived by the new method is very close to that ...


Electromagnetic Units, the Giorgi System, and the Revised International System of Units

IEEE Magnetics Letters, 2018

The centimeter-gram-second system of electromagnetic units (EMU) has been used in magnetism since the latter part of the 19th century. The International System of Units (SI), a successor to Giorgi's 1901 rationalized four- dimensional meter-kilogram-second system, was adopted by the General Conference on Weights and Measures in 1960 with the ampere as the fourth base unit. However, EMU remains in ...


Background Theory

Fundamentals of Aperture Antennas and Arrays: From Theory to Design, Fabrication and Testing, None

This chapter provides some background theory and introduces notation in preparation for use throughout the remainder of this text. The equations that were devised by James Clerk Maxwell and placed in differential form by Oliver Heaviside and Heinrich Hertz are introduced. Heaviside, and independently Hertz, reduced these 20 equations to the four vector field equations that are essentially used today. ...


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Educational Resources on Permeability

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IEEE.tv Videos

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IEEE-USA E-Books

  • Laboratory investigation of permeability characteristics of dredged fill in the Qianwan area Shenzhen

    The existing disadvantage of traditional permeability test apparatus in determining the permeability of high water content and large void ratio dredged fill is overcome by GDS consolidation test apparatus, which can directly measures permeability coefficient after consolidation tests under different consolidation pressures. Laboratory permeability tests are performed on dredged fill of high water content from 110 percent to 150 percent in the Qianwan area Shenzhen by GDS consolidation test systems, the results are shown as follows: the seepage of dredged fill samples is approximately according to the Darcy's law under permeability pressure difference. After a certain consolidation pressure from 15kPa to 400kPa, permeability coefficient of dredged fill samples varied from 0.06×10-7cm/s to 6.55xl0"7cm/s, the variation of which is three orders of magnitude, and the nonlinear power function relationship of permeability coefficient-void ratio is shown. GDS consolidation test systems will provide a new means for the study on the permeability and determining permeability parameters of dredged fill, and the research achievements in this test will provide a theoretical basis for determining nonlinear relationship of permeability coefficient-void ratio and the parameters for finite-strain consolidation behaviors numerical analysis of dredged fill.

  • Measurement methods of complex permittivity and permeability of sheet samples in free space in microwave range

    A set of measurement methods of complex permittivity and permeability of sheet samples in free space in microwave range is elaborated. The measurements are realized in wide frequency band for comparatively small samples (compared to several wavelengths) with high accuracy due to using of Time Domain and compensation procedure on diaphragmatic horn antennas.

  • A new method for evaluating the coefficient of consolidation

    Based on Therzaghi's one dimensional consolidation theory, a new method for evaluating coefficient of consolidation is proposed in this paper, which is more convenient than Casagrande's log t method and Taylor's √t method. Consolidation and permeability combined tests by GDS advanced consolidation testing system show that the coefficient of consolidation derived by the new method is very close to that by Taylor's √t method , greater than that by Casagrande's log t method and generally equal to the measured results; The tests also show that the primary consolidation settlement obtained by the new method is very close to that by Taylor's √t method and less than that by Casagrande's log t method .

  • Electromagnetic Units, the Giorgi System, and the Revised International System of Units

    The centimeter-gram-second system of electromagnetic units (EMU) has been used in magnetism since the latter part of the 19th century. The International System of Units (SI), a successor to Giorgi's 1901 rationalized four- dimensional meter-kilogram-second system, was adopted by the General Conference on Weights and Measures in 1960 with the ampere as the fourth base unit. However, EMU remains in common use for the expression of magnetic data. The forthcoming revision of the SI will accentuate its differences with EMU. The permeability of vacuum will no longer be a fixed constant, which recalls the Giorgi system and prompts a review of historical arguments on the concepts of magnetic flux density and magnetic field strength in vacuum. The redefinition of the ampere in terms of the fixed numerical values of two defining constants could allow for independent experimental measurements of the permeability of vacuum, i.e., determination of the magnetic constant.

  • Background Theory

    This chapter provides some background theory and introduces notation in preparation for use throughout the remainder of this text. The equations that were devised by James Clerk Maxwell and placed in differential form by Oliver Heaviside and Heinrich Hertz are introduced. Heaviside, and independently Hertz, reduced these 20 equations to the four vector field equations that are essentially used today. For Heaviside, the concepts of fields, symmetry and vector notation were vital. The partial field pairs, satisfy separate sets of Maxwell's equations. The time‐averaged conservation of energy in the electromagnetic field is given by Poynting's theorem. The chapter also summarizes the important concepts of field duality, equivalent sources and image theory. Finally, radiation from elementary sources is investigated, and this allows a description of some basic radiation parameters as well as an introduction to mutual coupling.

  • Discussion on “observation of harmonics in current and in voltage wave shapes of transformers”, San Francisco, Cal., May 6, 1910 (see proceedings for May, 1910)

    None

  • Electromagnetic Shielding Effectiveness of Layered Polymer Nanocomposites

    Conducting polymer composite is an attractive option as electromagnetic shielding material for applications in aviation and defense sectors where weight is an important criterion. Conductivity at low filler loading can be achieved in conventional composites by using fillers of large aspect ratio and small particle size but the conductivity achieved is not high enough. Thus, the conventional filled conducting composites are not suitable for many of the shielding applications. A new type of conducting polymer composite has been developed-the silicone rubber (SR) composite layered with carbon nanofiber (CNF) wafers which showed excellent shielding capabilities. In this study, the shielding capabilities of the SR composites layered with CNF wafers are studied in the 2-18 GHz frequency range. The layered SR composites showed very good shielding effectiveness in the above frequency range as compared to the conventional composites. To understand the reason for the enhanced shielding effectiveness, the permittivity and permeability of the samples were measured as per the ASTM D5568 standard. The reflection and absorption losses were also computed from the S parameters obtained.

  • Microwave complex permeability of magnetite using non-demagnetising and demagnetising cavity modes

    This paper investigates the use of a cylindrical microwave cavity resonator to measure the complex permeability of mixtures of magnetite (Fe3O4) and silicon dioxide (SiO2) using different field orientations. The weight percentages of the mixtures are varied and the effective bulk permeability is measured at frequencies from 3.8GHz to 10.16GHz using the TM110and TE0npmodes. The calculated permeability using the TM110mode (where the sample experiences demagnetisation owing to the perpendicular field orientation) is verified using TE0npmodes (where the sample demagnetisation is small). The TM110measurement follows the permeability and loss trends with frequency, demonstrating the effectiveness of this non-invasive technique for measuring the broadband magnetic properties of powder mixtures at microwave frequencies.

  • Conductivity Invariance Phenomenon of Eddy Current NDT: Investigation, Verification, and Application

    Both the electrical conductivity and the magnetic permeability of a measured sample have significant impact on the detected signal in eddy current nondestructive testing. Therefore, the problem of obtaining accurate measurement for the electrical conductivity or magnetic permeability has been of great interest to design and manufacturing engineers. In this paper, the conductivity invariance phenomenon (CIP) is investigated and utilized to detect the magnetic permeability of metals. First, the CIP is introduced and its sensitivity factors are investigated using a finite-element method. An experimental platform is set up based on which the CIP is verified. Finally, a magnetic permeability measurement device is proposed, which separates the coupling impact of the sample's electrical conductivity and magnetic permeability. The work reported in this paper provides an effective approach to accurately estimate the magnetic permeability of metals without the influence of its conductivity.

  • Design consideration of non-contact feeding system

    The design method of the non-contacting feeding system will be shown. In this paper, FEM analysis is used for the design. The iron loss is the key factor of the system design. The core material and frequency should be decided by iron loss. By the method, high efficiency non-contact feeding system can be designed.



Standards related to Permeability

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IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques

To specify protocols for the measurement of the peak spatial-average specific absorption rate (SAR) in a simplified model of the head of users of hand-held radio transceivers used for personal wireless communications services and intended to be operated while held next to the ear. It applies to contemporary and future devices with the same or similar operational characteristics as contemporary ...


IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz

Recommendations are made to protect against established adverse health effects in human beings associated with exposure to electric, magnetic and electromagnetic fields in the frequency range of 3 kHz to 300 GHz. The recommendations are expressed in terms of basic restrictions (BRs) and maximum permissible exposure (MPE) values. The BRs are limits on internal fields, specific absorption rate (SAR), and ...



Jobs related to Permeability

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