热镀锌工艺中锌液表面流速的在线电磁测量
郑锦灿, 刘润聪(
), 王晓东()
), 王晓东()
Online Electromagnetic Measurement of Molten Zinc Surface Velocity in Hot Galvanized Process
ZHENG Jincan, LIU Runcong(), WANG Xiaodong()
), WANG Xiaodong()
图1. Lorentz力测速仪(LFV)测速原理图
Fig.1. Application principle of Lorentz force velocimetry (LFV) (Due to the distribution of magnetic field (B0) in the flowing molten metal, eddy current generated by electromagnetic induction between magnetic field and the molten metal, the Lorentz force (Fl) which brakes the molten metal is produced by the induction between the eddy current and the moving liquid (with the velocity of v), and the permanent magnet (PM) is also subjected to a force (Fm) in the same magnitude and the opposite direction)
