Development And Implementation Of Conductance Measurement And Supervising System On SOFC Electrode

The intermediate temperature solid oxide fuel cell (IT-SOFC) is one of the development trends. This paper develops a computer supervising system, which can meet the requirements of real-time measurement and analysis the whole process of experimental studies online by taking the conductance measurement experiment on SOFC electrode in DICP as background, using computer intelligence surveillance technology.It is analyzed the experiment requirements and the characteristics of experimental field model, including device layer, communication layer and computer supervising layer. Taking computer supervising layer as experimental platform, using Visual C++6.0 as the software development environment, It is mainly designed five aspects such as the seamless extension of the heating segment, the programmable table, the multipath transmission mode of data storage, the experiment platform and the virtualization of measuring instruments. A new software method is proposed by introducing pre-dislocation loop technology used to position the operation range and achieve the need of seamless extension. A programmable table is used for setting and modifying parameters on-line easily. The multipath storage mode of programmable table can solve the data distribution transmission among the download on-site, upload to database and experiment platform. The experiment platform develops human-computer interaction, multi-data display, parameter setting and online help documentation modules. The development of virtual multimeter and virtual temperature controller by introducing virtual instrument technology, can achieve the results of simulation environment and practical operation. The system has been successfully put into field operation.The running results show that, the experiment platform achieves the integrated supervising effect of real-time measurement on multiple types of SOFC electrode conductance. The measurement process is stable, reliable and the measured value of the conductance has a precision of six decimal places, which achieves the intelligence and automation in the process. The advantages of the supervising system with virtual instruments are the realistic images of virtual device, easy operation, and less design difficulty of the system operation platform.