Inductance of Helical Coilexamples|products|Murata Software Co., Ltd.

Example10 Inductance of Helical Coil

  • The inductance of a helical coil is solved.
     

  • Instead of the full modeling practiced in Exercise 8, the loop coil modeling is used with the number of turns specified.
    The model with specified number of turns (bulk coil) will be effective for the coil with high number of turns (100s, 1000s)
     

  • The vectors of the magnetic field and the magnetic flux density are also solved.
     

  • 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

Solver

Magnetic Field Analysis [Gauss]

Analysis Type

Static analysis

Options

N/A

Model

A body of helical coil (coil) is defined as a loop coil.

Body Attributes and Materials

Body Number/Type

Body Attribute Name

Material Name

1/Solid

Coil

008_Cu *

* Available from the Material DB

 

Body attribute is set up as follows to apply current to the coil with 100 turns.

Body Attribute Name

Tab

Settings

Coil

Current

Waveform: Constant

Current: 1[A]

Turns: 100[Turns]

Direction: Loop Coil/Magnetic Field Direction:

Magnetic Field Vector: X=0, Y=0, Z=1

Boundary Conditions

No setting.

Results

To see the results of inductance calculation, go to the [Results] tab

 

 

 click [Table] .

 

 

The vectors of the magnetic field are shown below.

 

The vectors of the magnetic field on YZ plane are shown below.

The magnetic field inside coil is directing the Z direction.

 

The vectors of the current density are shown below.

The current is flowing as set for the coil.