SIMPLE DEVICE FOR TESTING STRENGTH FOR WITHSTANDING ELECTROMAGNETIC INTERFERENCE WAVE

摘要

PROBLEM TO BE SOLVED: To provide a simple device and a method for testing the strength for withstanding an electromagnetic interference wave capable of greatly shortening the time spent for immunity test.;SOLUTION: The present invention comprises: a receiving antenna 101 for receiving an electromagnetic interference wave radiated from an electronic apparatus; a receiving unit 102 for receiving from the receiving antenna; a signal processing unit 103 for converting the time waveform of the received electromagnetic interference wave into a frequency spectrum and calculating an electric field intensity level; a storage unit 104 for storing the electromagnetic interference wave converted into the frequency spectrum; an arithmetic unit 105 for calculating, when electromagnetic interference waves each converted into a plurality of frequency spectra are accumulated in the storage unit, a difference between the electromagnetic interference waves; a comparison unit 106 for comparing the electric field intensity level with a threshold and extracting a frequency corresponding to the electric field intensity level exceeding the threshold; a display unit 108 for displaying the extracted frequency; a transmission unit 110 for generating a radio wave on the basis of a frequency, an application level, and an application time set by an application condition control unit 109; and a transmission antenna 111.;COPYRIGHT: (C)2015,JPO&INPIT