Magnetic field analysis method, magnetization analysis device, and recording medium with computer program

A magnetic field analysis method for analyzing a magnetic state of a permanent magnet obtained by magnetizing a magnetic material with a magnetizer, comprising:

• a step of arranging a demagnetization curve that is obtained by actually measuring each incomplete magnetization region of a permanent magnet in advance and corresponds to an applied magnetizing magnetic field;
• a step of calculating a region parameter related to an incomplete magnetization region of the permanent magnet to be analyzed with the use of the demagnetization curve;
• and incomplete magnetization region
• a step of analyzing a magnetic state of the permanent magnet with the use of the calculated region parameter.

A magnetization analysis device for analyzing a magnetic state of a permanent magnet obtained by magnetizing a magnetic material with a magnetizer, comprising:

• an applied magnetizing magnetic field calculating means for calculating an applied magnetizing magnetic field to each portion of the magnetic material, by performing a magnetic field analysis with the use of a magnetizer parameter related to the magnetizer and a magnet parameter related to the magnetic material;
• a parameter calculating means for calculating a region parameter related to each incomplete magnetization region of the permanent magnet to be analyzed, on the basis of the calculated applied magnetizing magnetic field by the applied magnetizing magnetic field calculating means and a demagnetization curve obtained by actually measuring each incomplete magnetization region of an permanent magnet in advance and corresponding to a magnetizing magnetic field to be applied;
• and
• a magnetic state calculating means for calculating a state parameter representing a magnetic state of the permanent magnet to be analyzed, by performing a magnetic field analysis with the use of the calculated region parameter by the parameter calculating means, wherein
• the magnetic state of the permanent magnet is analyzed on the basis of the calculated state parameter.

A magnetization analysis device for analyzing a magnetic state of a permanent magnet obtained by magnetizing a magnetic material with a magnetizer, comprising:

• an applied magnetizing magnetic field calculating unit that calculates an applied magnetizing magnetic field to each portion of the magnetic material, by performing a magnetic field analysis with the use of a magnetizer parameter related to the magnetizer and a magnet parameter related to the magnetic material;
• a parameter calculating unit that calculates a region parameter related to each incomplete magnetization region of the permanent magnet to be analyzed, on the basis of the calculated applied magnetizing magnetic field by the applied magnetizing magnetic field calculating unit and a demagnetization curve obtained by actually measuring each incomplete magnetization region of an permanent magnet in advance and corresponding to a magnetizing magnetic field to be applied;
• and
• a magnetic state calculating unit that calculates a state parameter representing a magnetic state of the permanent magnet to be analyzed, by performing a magnetic field analysis with the use of the calculated region parameter by the parameter calculating unit, wherein
• the magnetic state of the permanent magnet is analyzed on the basis of the calculated state parameter.

A magnetization analysis device for analyzing a magnetic state of a permanent magnet obtained by magnetizing a magnetic material with a magnetizer, comprising:

• a controller capable of performing the following operations of:
• calculating an applied magnetizing magnetic field to each portion of the magnetic material, by performing a magnetic field analysis with the use of a magnetizer parameter related to the magnetizer and a magnet parameter related to the magnetic material;
• calculating a region parameter related to each incomplete magnetization region of the permanent magnet to be analyzed, on the basis of the calculated applied magnetizing magnetic field and a demagnetization curve obtained by actually measuring each incomplete magnetization region of an permanent magnet in advance and corresponding to a magnetizing magnetic field to be applied;
• and
• calculating a state parameter representing a magnetic state of the permanent magnet to be analyzed, by performing a magnetic field analysis with the use of the calculated region parameter;
• and
• analyzing the magnetic state of the permanent on the basis of the calculated state parameter.

A recording medium with a computer program for causing a computer to analyze a magnetic state of a permanent magnet obtained by magnetizing a magnetic material with a magnetizer, wherein

• the computer program comprising:
• a step of causing the computer to calculate an applied magnetizing magnetic field to each portion of the magnetic material by performing a magnetic field analysis with the use of a magnetizer parameter related to the magnetizer and a magnet parameter related to the magnetic material;
• a step of causing the computer to calculate a region parameter related to each incomplete magnetization region of the permanent magnet to be analyzed, on the basis of the calculated applied magnetic field and a given demagnetization curve;
• and
• a step of causing the computer to calculate a state parameter representing a magnetic state of the permanent magnet to be analyzed by performing a magnetic field analysis with the use of the calculated region parameter;
• and
• a step of causing the computer to analyze the magnetic state of the permanent on the basis of the calculated state parameter.