| 摘要 |
PROBLEM TO BE SOLVED: To provide a portable electromagnetic field sensor that is inexpensive, specifies a noise source easily and quickly, grasps a frequency band and relative strength, and is capable of measurement without selecting the location. SOLUTION: The simplified electromagnetic field sensor comprises a detection probe, a detection circuit 5, and a light-emitting element drive circuit 6. In the simplified electromagnetic field sensor, the detection probe comprises a shield-type loop antenna 1. COPYRIGHT: (C)2005,JPO&NCIPI
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