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

作　　者：林安利 贺建 张跃 John Dudding Michael Hall 

机构地区：[1]Department of Materials Physics, University of Science and Technology Beijing, Beijing 100083 [2]Magnetic Material Measurement Laboratory, National Institute of Metrology, Beijing 100013 [3]Hirst Magnetics Instruments, Tesla House, Tregoniggie, Falmouth, Cornwall, TR11 4SN, UK [4]National Physics Laboratory, Teddington, Middlesex, TW11 0LW, UK

出　　处：《Chinese Physics Letters》2007年第11期3088-3091,共4页中国物理快报（英文版）

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.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.

分 类 号：O44[理学—电磁学]