| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a magnetic force property calculation method for simply and non-destructively calculating a coercive force distribution in short time period without dividing a calculation object magnet, a magnetic force property calculation device, and a computer program thereof. <P>SOLUTION: An R-T-B based sintered magnet is placed in a B-H tracer (S1). Output voltages of sensor coils (one H coil and three B coils) contained in a coil unit attached to the B-H tracer are obtained (S2). The obtained output voltage characteristic is converted into a magnetic force characteristic (S3). An average of the coercive force of the calculation object magnet is detected on the basis of the converted magnetic force characteristic (S4). The minimum of the coercive force of the magnet is detected on the basis of the converted magnetic force characteristic (S5). The coercive force distribution of the magnet in its thickness direction is calculated on the basis of the detected average of the coercive force and the minimum of the coercive force (S6). <P>COPYRIGHT: (C)2013,JPO&INPIT |
