GB/T 15013-1994 Terminology of magnetic properties and magnetic quantities for precision alloys
Some standard content:
National Standard of the People's Republic of China
Magnetic. characters and magnelicval ves tcrms definitions for procision alloys GB/1 15013—94
Replaces GRn 27—88
This standard applies to some basic and commonly used magnetic characteristics and magnetic barriers terms in the basic theory and technology of the field of precision alloys. 1
General terms
The spatial distribution of a material phenomenon, whose characteristics can be determined by standard or variable quantities. 1.2 Magnetic field
magrielic: field
A field that can be described by the force acting on moving charged particles, which is related to the motion of the charged particles and the charge they carry.
1.3 Magnetic (arca) moment m
magnetie(arca)mlent
characterizes the strength of the magnetic field and the force of the magnetic dipole. Its value is equal to the product of the current in the half-circuit equivalent to the magnetic dipole and the area S of the loop. Its direction is perpendicular to the plane of the loop, and the current is clockwise when observed from this direction. m=is
Note: For non-planar loops, the loop surface can be projected onto various coordinate planes, and the moment components corresponding to each projection surface can be obtained. The sum of these components is the total magnetic moment.
2 The moment of a system composed of any current loop and magnetic material, such as the micro moment of an iron core spiral tube, the moment of the atomic moment generated by the macro current loop and the orbital rotation of the particles in the inductive material, is completely generated by its own atomic moment.
: The torque exerted on the current network placed in the field is equal to the vector product of the magnetic moment m of this loop and the magnetic flux density H of the induction field: T-mKH
The unit name is ampere·half square meter, and the unit symbol is A\1.4 Bohr magnetism
Bohr nagneton
Its value is equal to a constant of the self-discharge magnetic frequency, that is, (9.27408=0.000)(4)×10-\1/(joule per tesla) Bohr magnetism is often used as a unit of measurement of atomic magnetic moment, 1.5 magnetic constant
naghetir conslant
Approved by the State Bureau of Technical Supervision on April 4, 1994 and implemented on May 1, 1994
GB/T 15013—94
Its value is equal to a constant of 4X10-iH/m (henry per meter); it is the ratio of magnetic flux density B to magnetic field strength H in vacuum, also known as vacuum magnetic permeability.
1. 6 Magnetic dipole
magnetie dipole
is a magnetic entity that can be represented by an infinitely small current loop. Note: A magnetic entity can be any current path, orbital motion of charged particles, or any combination thereof, such as a magnetized object. 1.7 Magnetic dipole momentj
magnetic dipole momentj
magnetic constant, multiplied by magnetic (area) moment m. The unit name is Cb·m, and the unit symbol is Wb·m. 1.8 Magnetic polarization J
magnetic polarization J
is a vector related to the volume of the material, and its value is equal to the ratio of the total magnetic dipole moment Z in the material volume to the phase volume V. J
JB-AH-MM
unit name is Weber per square gram meter, unit symbol is Wb/m\1.9 Magnetomotive force Fm
magnetomotive force F.
Line integral of the magnetic field strength H along a closed curve 1. F.=Hd
unit name is Ampere, unit symbol is A. 1. 10 Reluctance Rm
reluctance R.
ratio of the magnetic field strength F. to the corresponding magnetic flux 4. Ru-
The unit name is per [Li], and the unit symbol is H-1. 1.11 Permeance A
permeance A
The reciprocal of magnetic group R.
The unit name is henry [Li], and the unit symbol is H. 1.2 Reluctivity 1/
reluctivity 1/
The reciprocal of permeability
Note: Reluctivity can be determined by any of the limiting methods of permeability. 1.13 Magnetostriction
magnetcstricture
refers to the elastic deformation phenomenon caused by the change of magnetization state of magnetic materials or magnetic objects. 1.14 Longitudinal magnetostriction coefficient cnefficient A When the magnetization field increases from zero to a specified value (usually to the saturation value), the relative change in the length of the ferromagnetic body along the direction of the magnetic field. Note: Its saturation value is called the saturation magnetostriction coefficient cnefficient A. This value is dimensionless.
1.15 Transverse magnetostriction coefficient A
transverse magnetostriction cnefficient A When the magnetization field increases from zero to a specified value (usually to the saturation value), the relative change in the length of the ferromagnetic body along the direction perpendicular to the magnetization: This value is dimensionless.
1.16 Diamagnetism
diamagmlsm
Under the action of an external magnetic field, an atomic system acquires or tends to acquire a magnetic moment opposite to the direction of the field. 1. 17 Paramagnetism
paranagitlis
In atomic terms, the magnetic moment is affected by thermal agitation, so when there is no external magnetic field, these magnetic moments are randomly distributed, but when an external magnetic field is added, this magnetic moment acquires or tends to acquire the same direction as the external magnetic field. 1.18 Ferromagnetism
ferrurmaghetism
The phenomenon that the magnetic fields are arranged in opposite directions due to the interaction between atoms close to each other. 1.19 Ferromagnetism
ferrinagnetism
The phenomenon that the magnetic fields of neighboring atoms are partially offset by the interaction with each other under the influence of an external magnetic field.
1.20 Anti-rank magnetism
anilerr organ:tist
When there is no external magnetic field, the neighboring atoms or ions of the same kind interact with each other, and their magnetic moments are arranged in a state of cancellation, making the combined moment zero.
1.21 Superparamagnetism
superparamagnetism
When the size of ferromagnetic or paramagnetic particles is smaller than a certain value, under the influence of thermal vibration at a certain temperature, the behavior of the particles is similar to paramagnetism, and the aggregates of these micro-condensates will show the phenomenon of light stagnation. 1.22 Curie temperature (curie point) T:
curie temperature:trurie point) T. refers to the transition temperature between magnetism or ferromagnetism and paramagnetism. When the temperature is lower than this, the material is ferromagnetic or ferromagnetic, and above this temperature, it is paramagnetic
To: The transition of the central property is not very real, so it is not correct! The above definition cannot give an exact temperature value. In order to change the temperature of a measurement, it is recommended to use the auxiliary line (usually a straight line) of the relationship between the saturation magnetization intensity (i.e., the salinity residual function) to 0. The temperature at the intersection of the extrapolated line and the temperature axis can be taken as the Curie temperature. In high field conditions, the measured value will often lead to the cumulative deviation of the obtained degree. The Curie temperature is generally expressed in K, and can also be expressed in (, 1.23 Compensation temperature (compensation point) Tm
..comGB/T 1501394
compensation temperaturetcampensation point)Tu The temperature at which the magnetic moments of some industrial ferromagnetic materials cancel each other out and make the spontaneous magnetization intensity zero. Compensation temperature is expressed in K or C:.
1.24 Neel temperature (Neel point) Tn
Neel temperature(Neel point) point) Tn refers to the transition temperature between antiferromagnetism and paramagnetism. Below this temperature, the material is antiferromagnetic, while above this temperature, it is paramagnetic. The temperature is expressed in K or
1.25 Magnetic anisotropy: The phenomenon that an object has different magnetic properties in different directions relative to a given reference frame. 1. 26 Crystal anisotropy: The magnetic anisotropy of a single crystal caused by the anisotropy of the crystal structure. Note: (The magnetocrystalline anisotropy of cubic crystal is cubic type magnetic anisotropy.) For hexagonal single crystal, the easy direction parallel to the (0001) axis is called principal axis type magnetocrystalline anisotropy. For octagonal single crystal, the easy direction in the (0001) plane is called plane plastic magnetic anisotropy (micro magnetic anisotropy). Stres: magitiie: Hhsotropy
Stress-induced shrinkage effect causes strict magnetocrystalline anisotropy in the body. 1.28 Form anisotropy
magneiit form ...
Note: The direction with the lowest magnetic anisotropy is called the potential direction (axis). The direction with the highest magnetic anisotropy is called the hard magnetization direction (axis). The maximum value of the energy in the direction of magnetic anisotropy is defined as the magnetic anisotropy of the direction. The unit name is joule (J) per cubic meter, and the unit symbol is 1/m. 1.32 Micro-repulsion constant
magnclic anisntropyronstant K represents the parameter of the strength of the magnetic anisotropy of the magnetic body. It is proportional to the magnetic anisotropy in the hard magnetization direction (axis), and the unit is called joule per cubic meter, and the unit symbol is J/m1.33 Texture
gcti extt:
GB/T 1501394
In polycrystalline magnetic materials, a structure that forms anisotropy is arranged in an orderly manner. Note: This term can also be interpreted as the elastic distribution of magnetic domains in polycrystalline phagosomes when exposed to an external magnetic field. 1.34 Magnetic flux density (nmagnetic induction) B
magnetic flux density (nmagnonic induction) is a kind of non-dispersive flux. The magnitude and direction of the magnetic field at any point in space are determined by the flux at that point. At that point, the force F on a charge moving at a certain speed is equal to the speed! The vector product of flux density B is: F--QaxH
The unit name is Tesla, and the unit symbol is T1.35 Micro flux
magnetic flrx @
Surface integral of the microfluidic density.
The unit name is Wei Pa, and the unit symbol is WL.
1.36Saturation magnetization M
nagnetization M
is a variable related to the volume of the material taken, and its value is equal to the ratio of the total magnetic field m in the material body to the corresponding volume V. Note: If the sum is taken for the entire body, the magnetic moment of the object can be obtained. The magnetic intensity in the object is generally different in different places. Therefore, the density at any position can be obtained by calculating the density of a small volume at that place. The unit name is Ampere per meter, the unit symbol is A/m, 1.37 and the magnetization intensity Mh
saturation magnetization M.
The maximum value of magnetization intensity that can be achieved by a given material at a given temperature. Note that in some cases the saturated magnetization intensity increases with the increase of the external magnetizing field. Its limit value is the saturated magnetization intensity of the material. The unit name is ampere per meter, and the unit symbol is A/m. 1.38 Ratio of saturation intensity to material density.
specific saturation intensity ratio. The ratio of saturation intensity to material density. The unit name is ampere square meter, which is equal to gram. The symbol is A·m/k. 1.39 Field strength H
Jlagetic field strength t!
is an axial vector associated with the magnetic flux density at a point in the magnetic field. The rotation of magnetic intensity H at the same point is √×I and the dispersion V·I is sufficient to satisfy the following equation,
Vx1/w.: 2)
Where: J, is the current density, D is the electric flux density or position current. M is the magnetization intensity at the point. Juice: When there is no displacement flow, the equation becomes tH·di
Where 1 is the magnetic field intensity II. The integral of the magnetic circuit 1 is the point included in the country. In the body
Where B is the phosphorus density, is the magnetic constant. The unit name is ampere per meter, and the unit symbol is A/m. 1.40 specific magnetization
specifinmaghetizatian
CB/T 15013 -- 94
The ratio of the density of the magnetic intensity material under a given magnetic field intensity. The unit name is ampere! Per gram, symbol A·m/, 1.41 Magnetic structure (magnetic order)
magnetiestrueture (magnetic order) The interaction between neighboring atoms or ions in a magnetic material. Adjacent atoms are arranged in a certain orderly and regular manner. 1.42 Metamagnetism
metamagnetism
Magnetic material changes its structure due to changes in magnetic field or temperature. 1.43 Mixed magnetism
It is a magnetic structure in which more magnetic atoms are randomly distributed in a non-magnetic matrix. 1.44 Spin glass
spin glass
A few magnetic atoms are randomly distributed in a non-magnetic matrix. 1.45 Spin wave
apin wave
is a collective motion mode of a small spin (original magnetic moment) system in a tunnel-ordered structure material. Since spins have exchange interactions and magnetic dipole interactions, when they are subjected to thermal vibrations or other disturbances, the deviation of each spin from the original equilibrium position moves with different amplitudes and phases, forming a series of frequency and wavelength fluctuations of the spin system, which is called a spiral wave. 1.46 Helix
helimagnetism
refers to the non-linear helical arrangement of the magnetic moments of adjacent atoms. The indirect interaction and the interaction with the electric field of the product form a variety of complex spiral magnetism, axial reverse domain magnetism, axial modulation antiferromagnetism, cone spiral antiferromagnetism, starved spiral ferromagnetism, and cut spiral antiferromagnetism, plane simple (linear) ferromagnetism, axial cylindrical single (collinear) ferromagnetism, 1.47 scattered ferromagnetism
asperomagnetismin
From a magnetic domain, the scattered distribution of the frozen atomic magnetic field space. In some directions, there are more net magnetic moments forming a magnetic structure with a spontaneous magnetization intensity of non-zero!
1.48 digital antiferromagnetism
aperomagretism
From a microdomain, the scattered distribution of the frozen atomic magnetic field space and the net magnetic moment forming a magnetic structure with a zero magnetic field intensity. Note: Scattered magnets are different from paramagnets in that the spatial distribution of their primary magnetic moments does not change with time. 1.49 Scattered ferrous magnetism
sperimagnctisn
From the perspective of "individual magnetism". Microstructure formed by ferromagnetic networks. 1.50 Magnetic resonance
agnetie iesonancy
Resonant absorption of microwaves or radio waves by the primary and secondary magnetic fields of magnetic materials in a static magnetic field. Note: Magnetic resonance includes electromagnetic resonance, nuclear resonance, ferromagnetic resonance, ferromagnetic resonance, ferromagnetic resonance, etc. 1.51 Magnetoresistive effect
magnctoresistatee :ffeel
..com394
GR/T 15013
The effect of resistance change caused by an external magnetic field. Note: This effect occurs in all metals, and is particularly obvious in ferrous metals and their dielectrics. 1.52 Magnetoelastic effect
magnetoelastic effect
magnetoelastic effect
magnetoelastic effect The effect of magnetic change associated with stress and strain in magnetic materials. 1.54 Magnetochemical effect
magnetexhemistryeffeet
The effect of chemical reaction and characteristic change associated with the action of the field or the change of inductance. Details: Its inverse effect is the chemical effect.
1. 55 Magnetic bioeffect
magnelobiology effect
refers to the changes in physical state or biochemical functions and characteristics caused by the action of the biological agent. The reverse effect is called the magnetic effect.
1.563 E-effect
AF tffeei
The change in the modulus of the material caused by the change of the magnetic field intensity or the magnetic intensity. 1.57 Irradiated magnetic effect: the magnetic change caused by irradiation of materials. The source can be electricity, proton, electrons, radiation, etc. 2 Magnetization state: 2.1 Magnetic hysteresis: the phenomenon that the flux density changes slowly with the change of magnetic field intensity. The occurrence of this phenomenon is independent of the change speed. 2.2 Magnetic neutral state: a state in which the total magnetic flux density and magnetic field intensity are equal to zero in any region or area that is much larger than the magnetic domain size.
2.3 Magnetic neutralization
w nutralizt
The process of restoring a magnetic body to a magnetic neutral state. 2.4 Dynamic magnetic repulsion state
dlynamically neutralized stateA neutral state in which the magnetic field intensity corresponding to saturation magnetization is reduced to zero by changing the magnetic field or the alternating reversal magnetic field.
2.5 Static magnetic neutral state
statically neutralized stateA magnetic neutral state in which a magnetic material is subjected to a certain external magnetic field and the magnetic flux density of the material reaches a certain specific state. When the external magnetic field is removed, the magnetic flux density of the material becomes zero. 2.6 Thermally neutral stateA neutral state in which a magnetic material is subjected to any external magnetic field and the temperature of the material is reduced to the Curie point and the magnetic flux density of the material becomes zero. 2.7 Cyclic magnetic condition A magnetic material is repeatedly magnetized by a magnetic field in both positive and negative directions, so that its hysteresis line is independent of the number of cycles of the same magnetization experienced by the material.
2.8 Anhysteretic state A state obtained by superimposing a demagnetizing alternating field on a static magnetic field. The amplitude of the demagnetizing alternating field can make the material reach saturation at the beginning and then gradually return to the original state.
2.9 To magnetize To induce a magnetic flux density in the magnetic body.
2.10 Magnetization curve A curve showing the change of magnetic flux density, magnetic polarization or magnetization in a material with the change of magnetic field intensity. Note: It is necessary to explain the change of flux density B, magnetic polarization coefficient J and magnetization intensity M with the change of field strength H. The following terms can be used to distinguish between the curves:
BH curve
JH curve
M-II curve
2.11 Static magnetization curve
static magnetization curve
is the magnetization curve obtained when the rate of change of magnetic field strength is so slow that it does not affect the shape of the curve. 2.12 Dynamic magnetization curve
dynamic magnetization curve
is the magnetization curve obtained when the rate of change of magnetic field strength is high enough to affect the shape of the curve. 2.13 Initial magnetization curve
The magnetization curve obtained when a material in a thermoneutral state is subjected to a magnetic field with a strength increasing from zero. 2.14 Hysteresis loop
hysteresis BH(J-HJCM-Hloop
represents the closed magnetization curve of hysteresis phenomenon. Note: According to the vertical definition, the hysteresis loop is formed by the static hysteresis curve: the value can be used loosely to describe the loop formed by the dynamic hysteresis curve: obviously, this time will generally be determined by other processes besides hysteresis. The term BH[J-HJLM-H can also be used to describe dynamic situations. 2. 15 Static BH[J-HJ[MH) loop
static hysteresis BH[JH[M-HJlooP is the BH[HJ-HILM-H hysteresis loop obtained when the change rate of the field intensity is slow enough not to affect the shape of the curve. 2.16 dynamic hysteresis R-HCJ-HM-HJ loop is a B-HJ-HM-HJ loop obtained when the rate of change of the hysteresis field strength is high enough to affect the shape of the hysteresis field. 2.17 Normal hysteresis loop B/T 15013 94
normal hysteresis -H(J-HJ[M-HJloop is a symmetrical BH[JH[MI gate hysteresis loop relative to the coordinate source point obtained when the magnetic material is in a ring magnetization state. 2.18 Incremental hysteresis BH(J-HIEM-Hilkop is an asymmetric B-HLJ-HLM-HI magnetic loop of a magnetic material added to a collinear static magnetic field. 2.19 Normal magnetization curve, basic magnetization curve, commutation curve normal hysteresis loop vertices trajectory.
2.20 Hysteresis curve
anhysteresis curvc
A magnetization curve in which every point on the curve is in a hysteresis-free state. 2.21 Saturation
magnetic saturation
The state in which the magnetic material is subjected to a sufficiently strong external hysteresis effect and the magnetic polarization intensity or magnetization intensity basically no longer continues to increase with the increase of the external magnetic field.
2.22 Saturation hysteresis loop BH[J-HJM-HJloop When the maximum value of the magnetic field intensity can make the material saturated to saturation BH[J-HJ[M-HI hysteresis loop. Note: The limiting magnetic loop refers to the hysteresis loop when the maximum value of the magnetic field intensity is sufficient to make the irreversible hysteresis level no longer increase. 2.23 Saturation flux density (saturation inductance virtual intensity) B, saturation flux density (saturation magnetic induction)B, magnetic flux density (magnetic induction intensity) when the saturated material is magnetized. Note: The actual magnetic flux density (saturation magnetic induction intensity band) refers to the value of the magnetic flux density (micro induction intensity) under a specified magnetic field strength (the magnetic field strength that basically reaches saturation).
The unit name is Tesla, and the unit symbol is ten. 2.24 Residual magnetic flux density (material residual magnetic induction intensity) B, (residual magnetic polarization intensity J, JC residual magnetic intensity M\,)remanent flux density (remanent magnetic induction) B, remanent magnetic polarization J', Jremanent magnetization M'.)
The magnetic flux density (magnetic induction) (magnetic polarization) [magnetization] in a magnetic material when the applied magnetic field (including the self-demagnetization field) is zero.
Characteristics: (1) Under the above conditions, the remanent volume density is equal to the remanent magnetic polarization, and is equal to the product of the magnetic field and the measured remanent magnetic polarization. The above values correspond to the intersection of the remanent curve and the BLLM axis. The unit name is Tesla 3, and the unit symbol is T2.25 remanence B.
remanenceB
The remanent magnetic flux density value obtained from the saturation state of the material with a monotonically changing remanent field. The unit name is Tesla, and the unit symbol is T. 2.26 Cyclic remanence Br
cyclie remanence B.
corresponds to the residual flux density value on the same line of dynamic saturation. The unit name is Tesla, and the unit symbol is T. 2.27 Remanence ratio R
..comrr-sidual inciurtion ratio R'GB/T 15013 94
The ratio of the residual magnetic flux density to the maximum magnetic flux density Bm under the specified magnetic field strength. Note: The ratio under saturation conditions.
This value is infinite,
2.28 Corrective field strength H'cg [H', JII\cm]cuercive tield strength HceHejHen!RR
Yuanyi Box
Magnetic flux density BCMagnetic polarization intensity T1Magnetic intensity MGate is the magnetic field strength when it is zero. Calculation: T: If expressed in a graph, the coercive field intensity corresponds to the magnetic flux density B1 (polarization intensity J1 magnetization intensity M) before the retreat curve H point group, the coercive field intensity can refer to static magnetization or dynamic compensation, when not specified, it refers to the static magnetization process. The unit name is ampere per meter. The unit symbol is A/m, 2.29 force HHJ [HcM]
coercivityHenHeJCHemJ
The coercive field strength obtained from the micro-saturation state of the material with a monotonically changing micro-field. Note:) Hen bandpass coercive force.
Hr or Heu is usually called internal pressure. The unit name is ampere per meter, and the unit symbol is A/m2.30 Hem
ryclie crereivity Hcc Heic.lHeme] is the coercive field strength value when the material is subjected to an alternating field with an amplitude equivalent to the saturation loop. The unit name is ampere per meter, and the unit symbol is A/m. 2.31 Spontaneous magnetization
spontanoosmagnclizalo
In a magnetic domain, the magnetization achieved by the regular arrangement of magnetic moments in the absence of an external magnetic field Note: The magnetization intensity in the domain is the spontaneous magnetization intensity H. The unit of the spontaneous magnetization intensity is ampere per meter, and the symbol is A/1rl2.32 Spontaneous magnetization
dlomains
The spontaneous magnetization area in the magnetic material, in which the spontaneous magnetization intensity is basically uniform in size and quality. 2.33 Domainwall A transition region between adjacent magnetic domains where the atomic magnetic moment gradually changes from the direction of one domain to the direction of the adjacent domain. The transition region is called a domain wall. 2.34 Bloch wall A ... Note: Spider walls are usually formed in magnetic films with a thickness less than a certain critical thickness. In relatively large films and bulk materials, it is more conducive to the formation of spider walls from an energy point of view.
2. 36 Single domain particles
singlc fontain particles
GB/T 15013--94
Magnetic particles with a size so small that only one stable magnetic domain exists. Let: The maximum size that maintains a single domain state is the single critical size. 2.37 Barkhausen effect [Barkhausen jump celebration] Barkhausen elfcet (Berkhausan junops] When the external magnetic field strength changes continuously, the magnetic flux density in the magnetic material changes discontinuously. Note: In the circuit, the Barkhausen effect will produce a phenomenon called Barkhausen noise. 2.38 Magnetic annealing (magnetic field heat treatment)
magnetic anneal
A heat treatment of micro-materials in an external magnetic field in order to obtain the desired magnetic texture. 2. 39 Magnetic normalization
magnetic conditioning
A treatment of magnetic materials or magnetic cores to remove their magnetic history and obtain a reproducible magnetic state. 2.40 Thermal residual magnetization
thermoremanent magnetization The residual magnetization obtained when an object is cooled in a magnetic field. The unit name is ampere per meter, with the symbol A/m. 2.41 Magnetic variability The change in the magnetic properties of a material or a magnetic circuit over time or in the state of use. 2.42 Magnetic aging is an irreversible and continuous change in the magnetic properties of a material over time. This change is caused by the structural adjustment inside the material. Note that appropriate heat treatment can accelerate the rate of change or restore its initial state. 2.43 Magnetic relaxation The process of re-reaching equilibrium after a balanced magnetic system is disturbed. Due to the dynamics of atoms or subatomic particles, this process takes a certain amount of time. Note that this term usually refers to a short process with a time constant of microseconds. 2.44 Aftereffect after-effect
Magnetic relaxation with a time constant of seconds to many days. 2. 45Magnetic viscosity
magnctic viscosity
A magnetic after-effect caused by the change of an external static magnetic field. 2.46Gyromagnetic effect
Gyromagnectic effect
The phenomenon that the magnetization of a magnetic material in a static field rotates along the static magnetic field with damping due to disturbance and returns to a semi-equilibrium state through relaxation.
2.47Temperature coefficient α
temperature coefficient &
The ratio of the relative change of the measured parameter caused by temperature change to the temperature change. For example: Temperature coefficient of magnetic permeability
Temperature coefficient of magnetic permeability
Temperature coefficient of inductance
CB/T 15013—94
hr - ffet,
Pr(7-T)
a-(TT)
and so on, where , 2, I are the magnetic permeability, effective permeability and inductance at temperature T, respectively, and , Pr, L, are the conductivity, effective permeability and inductance at reference temperature T, respectively. Note: Within the temperature change range, the measured parameter should change monotonically. This value is infinite.
3 Magnetic permeability and loss
3.1 Magnetic susceptibility
magnctic susceptibility X
is a quantity that is equal to the magnetization intensity M when multiplied by the magnetic field intensity H. M=xH
This value is infinite.
3. 2 Initial susceptibility X:
initial susceptibility x
When the magnetic field strength and the magnetization strength are infinitely small, the limit value of the magnetic susceptibility: This value is dimensionless,
3.3 Specific susceptibility (mass susceptibility) Xm
spceifie: susceptibility (ass susreptibility) Xr. A quantity that is equal to the specific magnetization intensity α when multiplied by the field strength H. =X.H
The unit name is cubic meter per gram, unit symbol m/kg3.4 Gram molecular susceptibility (Gram susceptibility) Xmlnolatr susceptibility Xnd!
The product of the gram mass of a substance mml and its relative magnetic susceptibility Xmd—Mmo:* Ym
The unit name is cubic meter, unit symbol m
3.5 Absolute magnetic permeability M
absolute prrmcability
The ratio of the magnetic flux density B of a substance to the magnetic field intensity I, BWww.bzxZ.net
The unit name is Henry per unit, single symbol H/rm3.6 Relative magnetic permeability μ
relative permeability Jf
The ratio of the absolute microconductivity of a substance to its microconductivity constant.
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.