| As one of the extreme condition in physics experiment, Pulsed High Magnetic Field (PHMF) plays more and more important role in scientific research. Special technique is needed under PHMF. Based on the PHMF facility of HuaZhong University of Science and Technology, a transport measurement system based on Virtual Instrument (VI) was constructed. Meanwhile, the measurement methods under PHMF and kinds of interference were analyzed and corresponding anti-jamming techniques were researched. The thesis mainly contains following contents:First of all, conception, classification, research and development trend of high magnetic field were introduced. Measurement techniques of magnet parameters, transport, magnetization, megnetostriction and magneto-optics were given. System of remote data acquisition and instrument control based on VI was introduced.Secondly, the base structure of PHMF installation was discribed in detail.Thirdly, an electrical transport measurement system was researched. Concept, composing, characteristic and design of VI were discribed. Two general modes of instrument control-GPIB and Serial Communication were analyzed and compared, GPIB is used to control instruments in the system. Hardware of measurement system was analyzed;the experiment station was controlled by remote desktop connection.Fourthly, measurement methods of magnetic filed, temperature, transport and magnetization were researched. A sample holder used to electrical transport was prepared. Fifthly, the software of data acquisition and instrument control was designed with LabVIEW.Sixthly, interference resulting from electric and magnetic field was analyzed detailly, corresponding anti-jamming techniques were suggested. |
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