ELECTROMAGNETIC WAVE GENERATING POSITION DETECTION DEVICE

摘要

PROBLEM TO BE SOLVED: To continuously judge the presence/absence of generation of the electromagnetic wave and identify a place of generation thereof without being affected by the external noise. SOLUTION: A plurality of electromagnetic wave measurement antennas 3 and an external noise detection antenna 10 are provided. An operation part 8 measures the signal level of the electromagnetic wave by the measurement antennas at a plurality of points except a frequency point where the external noise detection antenna detects the noise among the specified number of measured frequencies. The effect of the external noise can be eliminated thereby. The operation part 8 judges the presence/absence of generation of the electromagnetic wave based on the measured signal level. The level of the signal detected by the measurement antenna is changed according to the distance between a source 1 of generation of the electromagnetic wave and the electromagnetic wave measurement antenna. The position of the source of generation of the electromagnetic wave is identified.