| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily adjust the range of a demagnetization area. <P>SOLUTION: A demagnetizer 10 is arranged surrounding a prescribed area 20a and comprises: a demagnetization antenna 20 whose circumferential length 20d changes: an identification processing section 31 which identifies the circumferential length 20d of the demagnetization antenna 20; an output voltage value setting section 32 which sets an output voltage value based on the circumferential length 20d of the demagnetization antenna 20 identified by the identification processing section 31; and an output section 33 which outputs a voltage according to the output voltage value set by the output voltage value setting section 32 to the demagnetization antenna 20. <P>COPYRIGHT: (C)2012,JPO&INPIT |
