Lorentz Force Sigmometry

摘要：

　　The present communication reports a new technique for the contactless measurement of the specific electrical conductivity of a solid conductor or an electrically conducting fluid.We term the technique Lorentz Force Sigmometry where the neologism Sigmometry is derived from the Greek letter sigma,often used to denote the electrical conductivity.Lorentz force sigmometry(abbreviated LoFoS)is based on similar principles as the traditional eddy current testing but allows a larger penetration depth and is less sensitive to variations in the distance between the sensor and the sample.Here we formulate the theory of LoFoS and numerically compute the calibration function which is necessary for determining the unknown electrical conductivity from the measurement of a Lorentz force.

关键词： Electrical conductivity Lorentz force finite element method

作者: Mladen Zec Robert P.Uhlig Marek Ziolkowski Hartmut Brauer André Thess

作者单位: Department of Advanced Electromagnetics - Ilmenau,University of Technology,Germany Institute of Thermodynamics and Fluid Mechanics,Ilmenau University of Technology,Germany

会议类型: 国际会议

会议名称: The 7th International Conference on Electromagnetic Processing of Materials(第七届冶金与材料电磁过程国际大会)

会议地点: 北京

会议语种:英文

页码: 1-5

在线出版日期: 2012-10-22（万方平台首次上网日期，不代表论文的发表时间）