| 4 | Integrated On-line Instrumentation System of Magnetic Properties Measurement显示文摘A portable microcomputer-controlled inspection system has been developed for detection of magnetic properties of soft magnetic materials. It incorporates custom designed software for control of the magnetic field during operation such as demagnetization, field sweeping, and for data logging and analysis. Results are recorded using a 12-bit analog to digital converter and are then stored on disk. The magnetic hysteresis loop and Barkhausen noise data can be converted into important magnetic parameters:. coecivity, remanence, and hysteresis loss, Barkhausen amplitude, and Barkhausen noise energy. This system incorporated with the magnetostriction, and magnetoacoustic emission, is then related with the nondestructive detection of material degradation. | D.G.Park, Y.Y.Song. H.Song and J.H.Hong (Korea Atomic Energy Research Institute, Yusong P.O.Box 105, Taejon, 305-600 Korea) C.G.Kim (Department of Physics, Sun Moon Univ., Asan-si, Chungnam, 336840 Korea) | 2000 | Journal of Materials Science & Technology2000，16，2： | 0 |
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