A Volt-Second Source for Calibration of Integrator in a Pulsed Field Magnetometer

LIN An-Li; HE Jian; ZHANG Yue; John Dudding; Michael Hall

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A Volt-Second Source for Calibration of Integrator in a Pulsed Field Magnetometer

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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.

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《中国物理快报：英文版》 |2007年第11期|3088-3091|共4页
作者
LIN An-Li; HE Jian; ZHANG Yue; John Dudding; Michael Hall;
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作者单位

Department of Materials Physics, University of Science and Technology Beijing, Beijing 100083;

Magnetic Material Measurement Laboratory, National Institute of Metrology, Beijing 100013;

Department of Materials Physics, University of Science and Technology Beijing, Beijing 100083;

Hirst Magnetics Instruments, Tesla House, Tregoniggie, Falmouth, Cornwall, TR11 4SN, UK;

National Physics Laboratory, Teddington, Middlesex, TW11 OLW, UK;

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正文语种 chi
中图分类物理学;
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A Volt-Second Source for Calibration of Integrator in a Pulsed Field Magnetometer

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