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Topic: Electric susceptibility

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	Electric susceptibility - Wikipedia, the free encyclopedia
		This, in turn, determines the electric permittivity of the material and thus influences many other phenomena in that medium, from the capacitance of capacitors to the speed of light.
		The susceptibility of a medium is related to its relative permittivity
		This frequency dependence of the susceptibility leads to frequency dependence of the permittivity, which is sometimes known as material dispersion.
	en.wikipedia.org /wiki/Electric_susceptibility (306 words)

	Crystal optics - LearnThis.Info Enclyclopedia (Site not responding. Last check: 2007-10-13)
		is the permittivity of free space and P is the electric polarisation (the vector field corresponding to electric dipole moments present in the medium).
		In an anisotropic medium, such as a crystal, the polarisation field P is not necessarily aligned with the electric field of the light E.
		Consider a light wave propagating along the z principal axis polarised such the electric field of the wave is parallel to the x-axis.
	encyclopedia.learnthis.info /c/cr/crystal_optics.html (674 words)

	[No title]
		LINEAR A linear medium is one in which the electric field intensity and the flux density are related by a constant which describes the permittivitypermittivity of the material and the magnetic field intensity and flux density are related by a constant that describes the magnetic properties or permeabilitypermeability of the material.
		It describes the electric field in terms of the number of flux lines per unit area where the number of flux lines is directly related to value of the charge producing the field.
		Electric flux density and field intensity are related as follows: EMBED Equation.3 ELECTRIC POTENTIAL Electric potential is a scalar quantity that is defined as the work done by electric forces in moving a unit positive charge from one point to another.
	www.enel.ucalgary.ca /~fear/lab3/lab3_help.doc (1246 words)

	electric susceptibility -- Encyclopædia Britannica
		For most linear dielectric materials, the polarization P is directly proportional to the average electric field strength E so that the ratio of the two, P/E, is a constant that...
		The index of refraction n of a transparent substance is related to its electric polarizability and is given by n2 = 1 + /0.
		As discussed earlier, is the electric susceptibility of a medium, and the equation P = E relates the polarization of the medium to the applied electric field.
	www.britannica.com /eb/article-9032287 (707 words)

	Susceptibility - Wikipedia, the free encyclopedia
		In physics, the susceptibility of a material or substance describes its response to an applied field.
		This is a disambiguation page: a list of articles associated with the same title.
		If an internal link referred you to this page, you may wish to change the link to point directly to the intended article.
	en.wikipedia.org /wiki/Susceptibility (97 words)

	Magnetic properties of materials
		Although susceptibility is not directly important to the designer of wound components it is used in most textbooks which explain the theory of magnetism.
		Susceptibilities of some other substances are given in table MPS where the paramagnetic substances have positive susceptibilities and the
		Susceptibility is a strong contender for the title of 'most confusing quantity in all science'.
	www.ee.surrey.ac.uk /Workshop/advice/coils/mu (3940 words)

	Search Results for electric - Encyclopædia Britannica
		quantity of electricity that flows in electric currents or that accumulates on the surfaces of dissimilar nonmetallic substances that are rubbed together vigorously.
		An electric circuit includes a device that gives energy to the charged particles constituting the current, such as a battery or a generator; devices that use...
		auxiliary electric field or electric vector that represents that aspect of an electric field associated solely with the presence of separated free electric charges, purposely excluding the...
	www.britannica.com /search?query=electric&submit=Find&source=MWTEXT (421 words)

	Electromagnetics (Site not responding. Last check: 2007-10-13)
		Under static conditions, either the electric properties are modeled, as is the case for the former two modes, or the magnetic properties, as is the case for Magnetostatics.
		In the case of time varying fields, the electric and magnetic quantities are coupled, and obtained in one simulation, as is the case for the AC power electromagnetics application mode.
		The permittivity of vacuum is a universal constant that, in electrostatics, describes the relation between the electric charge and the electric field.
	www-math.cudenver.edu /~jmandel/doc/guide/guide64.htm (2546 words)

	Kerr effect - Psychology Central (Site not responding. Last check: 2007-10-13)
		It is distinct from the Pockels effect in that the induced index change is directly proportional to the square of the electric field instead of to the magnitude of the field.
		The Kerr electro-optic effect, or DC Kerr effect, is the special case in which the electric field is a slowly-varying external field applied by, for instance, a voltage on electrodes across the material.
		For crystals, the susceptibility of the medium will in general be a tensor, and the Kerr effect produces a modification of this tensor.
	psychcentral.com /psypsych/Kerr_effect (1197 words)

	Mauritz - Dielectric Spectroscopy
		Under an external electric field, the dipoles rotate to align with the electric field causing orientation polarization to occur.
		Dielectric relaxation is the result of a movement of dipoles or electric charges due to a changing electric field in the frequency range of 10^2-10^10 Hz.
		Only when sufficient time is allowed after the application of an electric field for the orientation to attain equilibrium will the maximum polarization, corresponding to the highest observable dielectric constant, be realized in a material.
	www.psrc.usm.edu /mauritz/dilect.html (594 words)

	Electric Susceptibility of Unsolvated Glycine-Based Peptides
		The DC electric susceptibilities of unsolvated glycine-based peptides, WG
		By far the largest contribution to the susceptibilities is from the permanent dipole moment of the peptides.
		The measured susceptibilities are in good overall agreement with values calculated from the average dipole moment deduced from Monte Carlo simulations.
	pubs.acs.org /cgi-bin/abstract.cgi/jacsat/2002/124/i23/abs/ja012656d.html (203 words)

	Interaction of magnetic and electric properties in soils (Site not responding. Last check: 2007-10-13)
		This study aims at investigating the possible relationship between magnetic susceptibility and humidity determined by the use of electric conductivity measurements.
		The experimental results are used to develop a empirical mathematical approach for the dependence of susceptibility on the electric properties respectively soil humidity.
		The magnetic susceptibility was measured by means of the recently developed vertical soil profile kappa meter SM400 and a commonly used Bartington MS2D probe.
	www.unileoben.ac.at /~geophwww/Lehrveranstaltungen/abs_maier.htm (306 words)

	Robertson Geologging Limited
		The oscillating current produces a secondary field that is detected by the receiver coils.
		The ‘in-phase’ signal is a measure of susceptibility in formations with magnetic properties.
		Susceptibility logs are highly sensitive to iron and show large contrasts according to its oxidation state.
	www.geologging.com /english/products/probes/magnetic_susceptibility.htm (175 words)

	The Graphical User Interface (Site not responding. Last check: 2007-10-13)
		Some of the fundamental physical quantities in the field of electromagnetics are the electric field intensity E, the electric flux density or electric displacement D, the magnetic flux density B, the magnetic field intensity H, the current density J
		The boundary conditions associated with this mode are a Dirichlet boundary condition, specifying the value of the electric field Ec on the boundary, and a Neumann condition, specifying the normal derivative of Ec.
		The Dirichlet boundary condition assigns values of the electric potential V to the boundaries, usually metallic conductors.
	www.csc.fi /cschelp/sovellukset/math/matlab/femlab/femlab/gui31.htm (2389 words)

	Kerr Electro-Optic Effect Formal Report
		However, when a material has nonlinear polarization characteristics or when very large electric fields are applied to it, the electric susceptibility will become dependent on the nature of the applied electric field.
		The quadratic susceptibility tensor which describes second-order effects is associated with the Pockel's effect and the photorefractive effect.
		When the electric field is applied to the Kerr cell, the cell will further rotate the polarization of the light and the detector will see a fraction of the incident intensity of light.
	www.pha.jhu.edu /~mstone/Kerr/kerrpaperentire.html (3779 words)

	Chapter 4 (Site not responding. Last check: 2007-10-13)
		A linear dielectric is a material in which the polarization is proportional to the total electric field (external + internal):
		The constant of proportionality is called the electric susceptibility.
		In a linear dielectric, the displacement current is also proportional to the total electric field:
	teacher.nsrl.rochester.edu /PHY217/LectureSlides/12122001/tsld051.htm (44 words)

	[No title] (Site not responding. Last check: 2007-10-13)
		De stof staat in hoofdstukken 21 t/m 30 van het boek van Alonso en Finn, waarbij hoofdstukken 23 (electric structure of matter: reeds elders behandeld) en 30 (Interaction of electromagnetic radiation with matter: reeds behandeld bij spectroscopie) achterwege kunnen blijven.
		Hfst 24: Electric currents: Current and fields, Ohms law, conductivity (niet: circuits), magnetic force on current, magnetic field produced by current, forces between electric currents.
		Hfst 25: The electric field: Electric flux, Gauss law, electric polarization of matter, electric displacement, susceptibility and permittivity, capacitance, energy in electric fields.
	www.rug.nl /natuurkunde/onderwijs/vakkenOverzicht/Natuurkundevakken(N-Z)/NANatuurkunde2!print?lang=en (281 words)

	[No title] (Site not responding. Last check: 2007-10-13)
		The magnitude of the loss factor Lf = SYMBOL 107 \f "Symbol" tan(SYMBOL 100 \f "Symbol") is the primary criterion (in addition to dielectric strength) for the usefulness of a dielectric as an insulator material for AC applications.
		The loss factor indicates the susceptibility of a given material to dielectric heating, which is sometimes a useful phenomenon, but usually a loss.
		Usually those containing permanent electric dipoles (pyroelectrics) or, even better, spontaneously aligned permanent dipoles (ferroelectrics) are used.
	www.mmat.ubc.ca /courses/mmat382/sections/cnc789.doc (889 words)

	EMC Integrity: EMC emissions and immunity testing services for commercial, military and aerospace industries.
		The military and aerospace world uses the term susceptibility, rather than immunity used in the commercial world.
		Especially on susceptibility testing, this was a glaring hole in the previous standards.
		By defining minimum requirements for sweep times (and also giving test labs the latitude to perform a step and dwell routine), the standards greatly reduced the possibility that susceptibility problems could be missed during testing.
	www.emcintegrity.com /military-aerospace/milstd461.aspx (2286 words)

	J (Site not responding. Last check: 2007-10-13)
		When an electrical perturbation modifies the equilibrium states, it is induced local stresses due to the motion of dipoles attached to a polymer molecule, which requires cooperative rearrangement before establishing viscoelastic relaxation.
		It is demonstrated that polarization diffusion is present in the frequency spectrum that corresponds to relaxation normal mode and relaxation alpha mode.
		We propose an electric susceptibility model for this kind of systems, which have viscoelastic and dielectric responses.
	www.ifisica.uaslp.mx /~efc/Carteles.htm (3483 words)

	Applicator Design
		C. The system is suitable for measurements on most classes of materials, including metallic oxides, conventional and advanced ceramics, fabrics, earthenwares, geological and biological materials, foods, glasses, organics and ferrites, and measures the complex dielectric constant of materials during conventional heating, curing or sintering.
		the TEM mode electric field attenuation length for a TEM wave propogating in the material (under the assumption that the permeability is unity - ie.
		The electrical conductivity of a solid usually increases as the temperature increases, and most theories result in some form of Arrhenius-type activation energy dependence.
	www.magma.ca /~hutcheon/technique/appendix3.htm (2031 words)

	[No title]
		At the heart of this relationship is the fact that energy absorbed from a weak field is dissipated by fluctuations that are characteristic of the system at equilibrium.
		Assume the plates are separated by a distance d and have area A. The normal vector to the plates is in the z direction.
		The electric polarization P of the material is related to the electric field E by EMBED Equation.DSMT4 MACROBUTTON MTPlaceRef \* MERGEFORMAT SEQ MTEqn \h \* MERGEFORMAT ( SEQ MTSec \c \* Arabic \* MERGEFORMAT 23. SEQ MTEqn \c \* Arabic \* MERGEFORMAT 2) The subscript e indicates the electric susceptibility.
	faculty.washington.edu /gdrobny/Lecture553_23.doc (458 words)

	Response Function: Generalized Susceptibility
		, or generalized susceptibility, for the description of non-equilibrium disturbances.
		is thus also called generalized susceptibility, since the electric susceptibility
		(i.e., the total electric dipole moment per unit volume) in powers of the electric field
	xbeams.chem.yale.edu /~batista/vaa/node57.html (222 words)

	geoph
		Geohysical laboratories measure a variety of physical properties as density, porosity, magnetic susceptibility, thermal conductivity,gamma ray spectrometry.
		Repair and maintenance of geophysical instruments is carried out in house at the geophysical maintenance section.
		By using airborn radiometric and magnetic maps for regional geophysical exploration, and by using electric, (self potential, electric resistivity, and IP techniques), electromagnetic, magnetic, and gravity geophysical methods for ground survey.
	www.egsma.gov.eg /sss/geoph1.htm (520 words)

	IndiaStudyCenter.com - Syllabus of B.Sc - Physics of Andhra University
		Applications : Electric field due to an infinite sheet of charge, field due to a spherical distribution of charge at points within and outside the sphere.
		Field near a conducting spherical shell, capacitance of a parallel plate capacitor, of a concentric spherical shell and of a sphere.
		Dielectrics : Origin of polarisation, Polarisation, charge - density Electric field due to polarisation - Relation between D.E. and P. Dielectric constant and Electric susceptibility.
	www.indiastudycenter.com /other/syllabus/bsc/auphy.asp?Id=1 (691 words)

	Radiometrics Midwest EMC EMI (Site not responding. Last check: 2007-10-13)
		CS103 Conducted Susceptibility, antenna port, intermodulation, 15 kHz to 10 GHz
		CS105 Conducted Susceptibility, antenna ports, cross modulation, 30 Hz to 20 GHz
		CS114 Conducted Susceptibility, bulk cable injection, 10 kHz to 400 MHz
	www.radiomet.com /markets_07.htm (339 words)

	Testing and Examinations : Measurements for the Defense industry :: D.A.R.E!!
		Immunity testing is performed in the band of 10 kHz to 18 GHz at level up to 200 V/m.
		Military Standard 461E specifies a number of emission and susceptibility requirements.
		Conducted Susceptibility, Antenna Port, Rejection of Undesired Signals, 30 Hz to 20 GHz
	www.dare.nl /EN/28.html?lang=EN (237 words)

	MIL-STD 461E - Environ Testing Laboratory
		CS103 - Conducted Susceptibility, Antenna Port, Intermodulation, 15 kHz to 10 GHz
		CS104 - Conducted Susceptibility, Antenna Port, Rejection of Undesired Signals, 30 Hz to 20 GHz
		RS103 - Radiated Susceptibility, Electric Field, 2 MHz to 40 GHz
	www.environlab.com /mil_Std_461E.htm (251 words)

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