Gmi Effect Automatic Test System Based On Network Analyzer
2018 37TH CHINESE CONTROL CONFERENCE (CCC)(2018)
Abstract
The measuring instrument selects the network analyzer, combines the direct current source and the Helmholtz coil to form the GMI effect test system. PC program written in LabVIEW, network analyzer and DC current source is controlled by the host computer. The host computer can process and plot the impedance data collected by the network analyzer, and save the data and images locally. The test system by measuring the commercial Vitrovac6025 strip material, found that the material all showed a strong GMI effect at different frequencies. By comparing the measured data of the network analyzer and the impedance analyzer measured in the same frequency band, we found that the two are consistent, which verifies the accuracy and reliability of the test system.
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Key words
Giant magneto-impedance(GMI), LabVIEW, Network Analyzer
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