| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a compressor in which a permanent-magnet motor is incorporated and magnetized, wherein the magnetization rate is judged by grasp ing the number of revolutions in finished product inspection, in which external driving is difficult, and the designed performance is delivered to the full, and thereby solve a problem that it is difficult to grasp the number of revolutions in the process of finished product inspection and thus the magnetization rate is difficult to measure. <P>SOLUTION: In complete examination, power is externally applied and then the power application is interrupted. The waveform of induced voltage produced immediately thereafter is measured. The number of revolutions and the root- mean-square value are determined from the measured waveform, and the magnetization rate is thereby determined. <P>COPYRIGHT: (C)2004,JPO</p> |
