Detection Of Electromagnetic Radiation Based On Virtual Instrument Technology

With the development of technology, low-frequency electromagnetic radiation hazard to humans has been confirmed. For the protection of human health, the low-frequency electromagnetic radiation measurements are important. The paper illustrates the basic theory of electromagnetic radiation, current electromagnetic state of the environment and dynamic field of electromagnetic radiation. The paper specially points out the overview of electromagnetic radiation of those mobile phones, computers and other home appliances. Meanwhile, the paper points out the importance of the work of electromagnetic detection. On the basis of this, the paper analyzes the design ideas of virtual instrument system. Based on virtual instruments core of "software is the equipment" , develope three electromagnetic radiation automatic measuring systems. The paper details the hardware and software components of the system. The paper measures the different radiation sources making use of the test system , analyzes the data and achieves the pattern recognition of different sources. The whole system is user-friendly, easy to operate, and have a high value.