| 摘要 |
PROBLEM TO BE SOLVED: To accurately grasp the performance of a magnetized magnet, by setting a new parameter representing the magnetization state of the magnet, referred to as the time accumulation of magnetization current (current area). SOLUTION: In order to detect the magnetization state of a magnet by using a magnetization detecting device, timer setting is carried out to generate a conversion pulse of 10μs. Then, the end of conversion of an A/D converter 13 is detected, and data from the A/D converter 13 is taken and stored into a memory 16. At this point, whether or not a current is flowing is checked. Then, the end of conversion of the A/D converter 13 is detected, and data from the A/D converter 13 is taken and stored into the memory 16. This time, whether or not a current is not flowing is checked. Then, a peak current is detected from the data taken in the memory 16, and the total of current values, that is, the product of current value over time, is calculated from the data taken in the memory 16. Finally, the results are selectively indicated on an indicator 18. |
