Magnetization vector storing method, magnetization vector data compression method, and magnetic field simulator device

1. A magnetization vector storing method in a magnetic field simulation of a magnetic material having a magnetization vector, the method comprising:

setting an external magnetic field at a predetermined time;

calculating an equation that describes a precessional motion of magnetization in the magnetic material according to a time lapse;

acquiring, by a computer, a saturation magnetization value of the magnetic material to be simulated from a database;

dividing each component of the magnetization vector indicating a magnetization state of the magnetic material to be simulated by the saturation magnetization value;

converting each component of the magnetization vector obtained after the dividing using the saturation magnetization value as a reference value into an integer value to compress the magnetization vector; and

storing the integer value converted from the magnetization vector in the database.

2. The magnetization vector storing method according to claim 1 , wherein each component of the magnetization vector obtained after the dividing is converted into the integer value by multiplying each component of the magnetization vector by a value of three or more digits.

3. The magnetization vector storing method according to claim 1 , further comprising:

dividing each component of the magnetization vector converted into the integer value from the database by a value of three or more digits; and

multiplying each component of the magnetization vector obtained after the dividing using the value of three or more digits by the saturation magnetization value, thereby restoring a corresponding magnetization vector.

4. The magnetization vector storing method according to claim 1 , further comprising: acquiring the magnetization vector indicating the magnetization state in time series; and storing the magnetization vector converted into the integer value in the database in time series.

5. A magnetization vector data compression method in a magnetic field simulation of a magnetic material having a magnetization vector, the method comprising:

acquiring a saturation magnetization value of the magnetic material to be simulated from a database;

dividing each component of the magnetization vector indicating a magnetization state of the magnetic material to be simulated by the saturation magnetization value;

converting each component of the magnetization vector obtained after the dividing using the saturation magnetization value as a reference value into an integer value to compress a data amount of the magnetization vector; and

storing the integer value converted from the magnetization vector in the database.

6. A magnetic field simulator device comprising:

a memory configured to store a program; and

a processor coupled to the memory and configured to execute the program,

the processor is configured to, based on the program:

set an external magnetic field at a predetermined time;

calculate an equation that describes a precessional motion of magnetization in the magnetic material according to a time lapse;

acquire a saturation magnetization value of the magnetic material to be simulated from a database;

divide each component of the magnetization vector indicating a magnetization state of the magnetic material to be simulated by the saturation magnetization value;

convert each component of the magnetization vector obtained after a division into an integer value to compress the magnetization vector; and

store the integer value converted from the magnetization vector in the database.

7. The magnetic field simulator device according to claim 6 , wherein each component of the magnetization vector obtained after the dividing is converted into the integer value by multiplying each component of the magnetization vector by a value of three or more digits.

8. The magnetic field simulator device according to claim 6 , wherein the processor is configured to:

divide each component of the magnetization vector converted into the integer value from the database by a value of three or more digits; and

multiply each component of the magnetization vector obtained after the dividing using the value of three or more digits by the saturation magnetization value, thereby restoring a corresponding magnetization vector.

9. The magnetic field simulator device according to claim 6 , wherein the processor is configured to:

acquire the magnetization vector indicating the magnetization state in time series; and

store the magnetization vector converted into the integer value in the database in time series.

10. The magnetization vector storing method according to claim 1 , further comprising multiplying each component of the magnetization vector with a predetermined value and truncating a fraction after a decimal point of the magnetization vector.

11. The magnetization vector data compression method according to claim 5 , further comprising multiplying each component of the magnetization vector with a predetermined value and truncating a fraction after a decimal point of the magnetization vector.

12. The magnetic field simulator device according to claim 6 , wherein the processor is further configured to multiply each component of the magnetization vector with a predetermined value and truncate a fraction after a decimal point of the magnetization vector.