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129 - Characteristic Analysis of a PM Stepping Motor Accounting for Magnetization
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Module:ST,TR |
2011-01-17 |
Stepper motors are commonly used for positioning in printers and digital
cameras.The magnetization of the magnets used for the PM stepping motor
largely affect the motor's characteristics.Therefore, it is advantageous
to accurately measure the characteristics of the PM stepping motor by clearly
defining the magnetization with an analysis.This example presents the use
of magnet field analyses to obtain the induced voltage of a PM stepping
motor that combines magnetization distribution, surface flux density, and
magnetization of magnets magnetized with a magnetization device.
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79 - Analysis of an Effect of Magnetic Field Orientation on Magnetization
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Module:ST |
2011-07-12 |
In any device having a permanent magnet, the magnetization state of the
magnet has large effect on the device characteristics. In the analysis
of a permanent magnet or a device having a permanent magnet, the process
of orientation and magnetization needs to be taken into account for accurately
simulating the magnetization state of the magnet. In JMAG, the magnetic
field orientation and magnetization field can be calculated and the result
is used for the analysis of the magnet to evaluate the device characteristics.
This note presents the use of magnetic field analysis to evaluate the surface
magnetic flux density distribution of a magnet, taking into account the
process of orientation and magnetization.
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55 - Magnetization Analysis of an IPM Motor
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Module:DP,ST |
2011-01-17 |
A magnetized magnet needs a careful handling at the time of assembling
an IPM motor, so it is useful to magnetize the magnet after placing it
in the motor. Generally, it is desirable the entire magnet is magnetized
completely. So, magnetization conditions, such as the amount of current,
need to be considered before magnetization. In JMAG, Magnetizing Tool is
used to obtain magnetization field which can be later used to produce magnetization
distribution. This note presents the use of magnetic field analysis to
obtain magnetization fields at different currents, and also to obtain the
induced voltage and cogging torque of an IPM motor when obtained magnetization
fields are used for magnetization of the magnet.
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30 - Magnetization Analysis of an SPM Motor
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Module:ST,CB |
2011-02-28 |
A magnetized magnet needs a careful handling at the time of assembling
a motor, so it is useful to magnetize the magnet after placing it in the
motor. When the anisotropic magnet placed in the motor is magnetized, the
effective magnetization field distribution is determined by the magnetization
field and the orientation of the magnet. Magnetizing Tool of JMAG can be
used to obtain the magnetization field distribution, taking into account
the magnetization field of the magnet evaluated in advance. This note presents
the use of magnetic field analysis to obtain the magnetization field used
to magnetize a permanent magnet placed in an SPM motor and also to obtain
the surface magnetic flux density of the magnet.
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