Electromagnetic radiation signal monitoring device
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The invention discloses an electromagnetic radiation signal monitoring device which comprises a monitoring probe, an anti-interference protection circuit, an amplifying and filtering circuit, an optoelectronic isolation circuit and a computer, wherein the monitoring probe is used for sensing and monitoring electromagnetic radiation signals, and sensing electrical signals; the anti-interference protection circuit is used for preventing the peak pulse interference in the environment; the amplifying and filtering circuit is used for carrying out amplifying and filtering on the electrical signals; the optoelectronic isolation circuit is used for carrying out optoelectronic isolation on the electrical signals subjected to amplifying and filtering and then outputting signals so as to prevent that interference signals are introduced back to the amplifying and filtering circuit from the output end; and the computer comprises a signal acquisition card, a waveform display unit and a data storage unit, and the computer is used for carrying out acquisition, display, storage and analysis, calculation on the signals outputted by the optoelectronic isolation circuit. The electromagnetic radiation signal monitoring device disclosed by the invention has the advantages of simple structure, and strong anti-interference ability.