Design And Research Of Temperature Acquisition And Wireless Transmission System In Closed Microwave Cavity

Microwave digestion technology is used widely in sample pretreatment. Two key points of microwave digestion are temperature and pressure parameter,because different sample with different molecular chain structure, for eventually form a clear liquid, microwave digestion instrument needs different temperature and pressure to open these molecular chain, convenient follow-up ICP analysis, atomic absorption and mass spectrometer instrument.Aimed at the high temperature and high pressure in microwave digestion process with sample reactions uncontrollable, how to properly measure multiple sample digestion vessels temperature will become the focus of this article research work.First, this paper describes research background, purpose, significance, and reviewed the domestic and foreign research situation of microwave digestion instrument temperature acquisition ways, analyzed the main problems, as well as the main research work of this article, and expounds the power supply technology, microwave shield technology, temperature acquisition, wireless transmission, and Ir DA protocols principle knowledge.Secondly, in combination with the needs of the system, build the overall software and hardware structure, system analysis and functional modules as follows, power self-supply module, temperature acquisition module, wireless transceiver module and the upper computer module.Studies show that the design and implementation of this system can provide a new way for microwave digestion instrument temperature acquisition, can accurate and efficient to solve the problem that environment with high temperature, high pressure and strong microwave field.