Based On The Signal Of The Virtual Instrument Technology And Data Analysis And Processing System

In this paper, a signal producing and data processing system based on virtual instrument is designed. Firstly, the paper introduces the concept, structure and characteristic of VI and VI's application platform-LabVIEW. Describe the graphic program language. Secondly, I analyze the project including the functional requirement, the parameters to be measured, the precision to achieve and the means of measuring the parameters. Thirdly, I describe the structure and accomplishment of the hardware , the principle and the use of the simultaneously sampling multi-function card-DAQ2010 which is used in this project. At last, the paper introduces the software design which includes the software frame and program flow. In this part, I describe each of the function module individually in detail and finally lay out the outcome of practical measurement to an airplane power supply system.