高分辨率彩色显示管分段式环鞍型偏转线圈偏转场的数值分析

NUMERICAL ANALYSIS OF THE DEFLECTION FIELD IN A SEGMENTED S T YOKE OF HIGH RESOLUTION CDT

利用边界元与有限元相结合的方法，对分段式环鞍型偏转线圈偏转场分布进行数值计算和分析；针对高分辨率彩色显示管所用分段式环鞍型偏转线圈，建立了其绕线分布的数学模型；应用该模型对５１ｃｍ高分辨率彩色显示管分段式环鞍型偏转线圈的偏转场分布进行了计算与分析。对偏转场参量Ｈ＿０和Ｈ＿２的实验测量表明，计算结果与测量结果基本一致。

In this paper the numerical calculation and analysis of the magnetic field in a Saddle-Toroidal Deflection Yok(S-TDY ) with segmented windings have been carried out using the6oundarv element method in combination with the finite element method .A mathematic mod-el of winding distribution for the segmented S-TDY has been established,and the deflec-tion field of the segmented S.TDY used in a 51cm high-resolution Color Display Tube(CDT)has been calculated with the above model.The measurement of the deflection fieldparameters indicates that the calculated results are in good agreement with measured data.