CAE Software【Femtet】Murata Software Co., Ltd.
Example17 Directivity of Magnetic Field(Near field)
General
-
The magnetic field generated by a loop coil is analyzed.
-
The vectors and the directivity of the magnetic field are solved.
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Unless specified in the list below, the default conditions will be applied.
Analysis Space
|
Item |
Settings |
|
Analysis Space |
3D |
|
Model unit |
mm |
Analysis Conditions
|
Item |
Settings |
|
Solvers |
Magnetic Field Analysis [Gauss] |
|
Analysis Type |
Static analysis |
|
Options |
N/A |
Model
A solid body of loop coil is defined.
When you calculate the directivity, select open boundary as outer boundary condition.
Body Attributes and Materials
|
Body Number/Type |
Body Attribute Name |
Material Name |
Mesh Size |
|
2/Solid |
Coil |
008_Cu * |
0.25 |
* Available from the Material DB
|
Body Attribute Name |
Tab |
Settings |
|
Coil |
Current |
Waveform: Constant Current: 1[A] Turns: 1[Turns] Direction: Loop Coil/Magnetic Field Direction: Magnetic Field Vector: X=0, Y=0, Z=1 |
Boundary Conditions
Open boundary is set for the outer boundary condition.
|
Boundary Condition Name/Topology |
Tab |
Boundary Condition Type |
Settings |
|
Outer Boundary Condition |
Electric |
Open boundary |
|
Results
The vectors of the magnetic field on XZ plane are shown below.
The chart below shows the directivity of the magnetic field. (θ: min 0.0[deg], max 180[deg], step 18)
