Simple medical device electromagnetic radiation detector

Abstract

The invention discloses a simple medical instrument electromagnetic radiation detector. The simple medical instrument electromagnetic radiation detector comprises an antenna, a signal processing module and a measuring module, wherein the signal processing module comprises an operational amplifier, a frequency selection network and a log amplifier; the antenna is used for receiving electromagnetic radiation of a to-be-detected device, converting an electromagnetic radiation signal into an electric signal and sending the electric signal to the operational amplifier; the operational amplifier is used for amplifying the electric signal and sending the amplified electric signal to the frequency selection network; the frequency selection network is used for carrying out frequency selection on the received electric signal and sending a selected preset-frequency signal to the log amplifier; the log amplifier is used for carrying out log compression on the signal which is subjected to the frequency selection, obtaining a direct-current signal and sending the direct-current signal to the measuring module; the measuring module is used for measuring a signal received by the measuring module. The size of electromagnetic radiation of a product can be measured and researched by a researcher through the simple medical instrument electromagnetic radiation detector disclosed by the invention.

Description

technical field [0001] The invention relates to an electromagnetic radiation detector, in particular to an instrument used for detecting an index of electromagnetic radiation of a researched and developed product during the research and development of medical equipment. Background technique [0002] The State Food and Drug Administration stipulated in the notice on the relevant work requirements for the implementation of the YY0505-2012 medical device industry standard that medical electrical equipment needs to be tested for electromagnetic compatibility EMC, and the standard EMC test requires the equipment to be tested to be sent to a special Testing in the darkroom of the testing institute. There are many EMC testing items, among which electromagnetic radiation is one of the main reasons why the tested equipment fails to pass the test. [0003] If the product has not reached the national standard, it is unqualified and needs to be modified. At present, there are mainly t...

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Problems solved by technology

[0004] Both existing solutions have their disadvantages: although the former can be detected anytime and anywhere and can be modified in a targeted manner, it is expensive; the latter cannot be measured at any time, and it is impossible to know whether the product meets the national standard after modification , need to be sent to testing again, repeatedly, time-consuming and laborious

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