Design of Intelligent and Low Cost Transducer based on the 51 SoC

With the development of Automation and the progress of the micro electronic technology, and the mature of Field Bus, digital control technology is widely used in production process, so collection, transition and treatment of signal should meet higher requirements. This thesis analyzes function and operation principle of intelligent transducer. The transducer is designed chiefly for different weak output signal of non-standard sensors. Software of the system designs main program, amplifier gain setting program, ADC transition program, DAC transition program and processing subprogram by adopting assemble language of MCS—51 single chip and modularization program design method, and also designs corresponding communication protocol.