| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a portable electromagnetic field sensor for executing two operations, substantially simultaneously, simply, and in a short time, related to the determination of electromagnetic noise sources such as a circuit board, and to an action preventing electromagnetic interference caused by the noise sources. Ž<P>SOLUTION: This portable electromagnetic field sensor 1 includes a detection probe 4, a demodulation circuit 10, a display 7, a light emitting element drive circuit 11 for driving the display 7, and a power supply 17, and is unified with an enclosure 2. Within the enclosure 2, the sensor 1 includes a paste-like electromagnetic interference preventer 14 preventing electromagnetic interference, a storage 12 for storing the paste-like electromagnetic interference preventer 14, a feed guide path 13, a blower 15 generating drying air for drying the paste-like electromagnetic interference preventer 14, and a ventilation flue 16. A discharge port 6 for the paste-like electromagnetic interference preventer 14 and an air-sending port 5 for the drying air are installed close to a detection end of the detection probe 4. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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