Design and Study of Fiber Optic Strain Demodulation System Based on LabVIEW

In this paper, the health monitoring demodulation system for intelligent structure based on virtual instrument is introduced, which uses the high-sensitivity optical fiber strain sensing technology and can carry on the health monitoring to the intelligent structure. The testing system makes use of virtual instrument technology to realize multi-channel data acquisition, analysis and disposal. And it can also carry out long time and large capacity data sampling, which has the advantages of high measurement accuracy, facility operation, strong functions and easy to extend. The characteristics of the system mentioned in this paper are obtained when applied to strain sensing, with the resolution of 1 muepsiv.