The possibility of employing planar type micro-magnetic sensors for the evaluation of the quality of electroplating materialsas well as to inspect the presence of defects in its near-surface is investigated. The impedance of a planar type micro-magnetic sensor in the proximity of any metal surface is a complex function of many parameters including near-surface material properties. A two-dimensional model of two types of planar micro-magnetic sensors having meander and mesh type configurations has been developed for the analytical calculation of magnetic vector potential, flux-linkage and impedance. The impedance of the sensor is used for the evaluation of the quality of the electroplating materials. Usually an off-line generated grid system is used for the online evaluation of near-surface material properties. Use of a simple neural network model is proposed for the post-processing of output parameters from the measured impedance data as an alternative to the grid system
Guang Dong Foshan Xing Zhong Da Industrial Commerce Co., Ltd are Electroplating Materials of Chinese suppliers. 作者: 牙明k 時間: 2008-11-8 22:28
