| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an IC tag and an IC tag system low in cost with excellent reliability capable of surely detecting partial discharge and continuously monitoring a measured object with simple structure without needing a special power source by efficiently obtaining power from partial discharge and electromagnetic wave other than partial discharge. <P>SOLUTION: The output of an antenna part 10 is supplied to a modulating and demodulating part 13 and a battery part 17 via a power source part 15. The battery part 17 accumulates surplus power of the power source part 15. The antenna part 10 is a wide band antenna part having wide band characteristics. As for a start command signal from an IC tag reader 2 to the IC tag 1 in reading data, and data transmission from the IC tag 1 to the IC tag reader 2, frequency modulation or digital modulation is performed. <P>COPYRIGHT: (C)2007,JPO&INPIT |
