A Volt--Second Source for Calibration of Integrator in a Pulsed Field Magnetometer
LIN An-Li1, HE Jian2, ZHANG Yue1, John Dudding3, Michael Hall4
1Department of Materials Physics, University of Science and Technology Beijing, Beijing 1000832Magnetic Material Measurement Laboratory, National Institute ofMetrology, Beijing 1000133Hirst Magnetics Instruments, Tesla House, Tregoniggie, Falmouth, Cornwall, TR11 4SN, UK4National Physics Laboratory, Teddington, Middlesex, TW11 0LW, UK
A Volt--Second Source for Calibration of Integrator in a Pulsed Field Magnetometer
LIN An-Li1;HE Jian2;ZHANG Yue1;John Dudding3;Michael Hall4
1Department of Materials Physics, University of Science and Technology Beijing, Beijing 1000832Magnetic Material Measurement Laboratory, National Institute ofMetrology, Beijing 1000133Hirst Magnetics Instruments, Tesla House, Tregoniggie, Falmouth, Cornwall, TR11 4SN, UK4National Physics Laboratory, Teddington, Middlesex, TW11 0LW, UK
摘要A volt--second (Vs) source intended for absolutely calibrating the integrator in a pulsed field magnetometer (PFM) is designed and proven to be with accurate rising and falling edges and reasonable lower uncertainty. A comparison experiment shows that the difference between the magnetic fluxes generated respectively by the Vs source and the mutual inductor is within ±0.04%. The PFM is then calibrated in an absolute way of the Vs source. The calibrated PFM gives the measured results in good agreement with a static BH tracer supplied by National Institute of Metrology of China and provides a convenient way of studying the effect of mathematic process on the dynamic measuring curve of PFMs.
Abstract：A volt--second (Vs) source intended for absolutely calibrating the integrator in a pulsed field magnetometer (PFM) is designed and proven to be with accurate rising and falling edges and reasonable lower uncertainty. A comparison experiment shows that the difference between the magnetic fluxes generated respectively by the Vs source and the mutual inductor is within ±0.04%. The PFM is then calibrated in an absolute way of the Vs source. The calibrated PFM gives the measured results in good agreement with a static BH tracer supplied by National Institute of Metrology of China and provides a convenient way of studying the effect of mathematic process on the dynamic measuring curve of PFMs.
LIN An-Li;HE Jian;ZHANG Yue;John Dudding;Michael Hall. A Volt--Second Source for Calibration of Integrator in a Pulsed Field Magnetometer[J]. 中国物理快报, 2007, 24(11): 3088-3091.
LIN An-Li, HE Jian, ZHANG Yue, John Dudding, Michael Hall. A Volt--Second Source for Calibration of Integrator in a Pulsed Field Magnetometer. Chin. Phys. Lett., 2007, 24(11): 3088-3091.
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