带铁心任意形状偏转器磁场的计算
COMPUTATION OF THE MAGNETIC FIELD PRODUCED BY DEFLECTORS OF ARBITRARY SHAPE WITH FERROMAGNETIC SHIELD
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摘要: 本文将文献[1]的分析方法推广到带铁心的偏转器,绕组形状可以是任意的,如子午绕组、非子午绕组、鞍形、环形或扇形等。对铁心与绕组之间有一定间隙的情况,提出了计算偏转场的一种新的表示式,并用高斯-切比雪夫积分式对积分方程离散求解。最后用COTY GE-14''彩显管偏转器的解剖数据验证。
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关键词:
- 电子光学; 磁偏转器; 任意形状绕组
Abstract: The analysis method used in the previous paper by the authors is extended to the magnetic deflectors with ferromagnetic shield. The shape of the deflector winding may be arbitrary. It may be radial or non-radial, saddle, toroidal or fan-shape, etc.. A set of new expressions for the deflection field is suggested for the case where the windings are spaced by a gap from the shield. The integral equations are solved by Gauss-Chebyshev quadrature. The computation results are checked with the values measured from a deflector of CRT COTY GE-14''. -
沈庆垓,林文彬,谢志行,电子科学学刊,12(1990)1, 47-56.[2]D. M. Fye,J. Appl. Phys. 50 (1979), 17-22.[3]谢志行,黄达诠,沈庆垓,电子科学学刊,9(1987),17-27.[4]B. B. Dasgupta, RCA Rev., 44 (1983), 404-423.[5]王竹溪,郭敦仁,特殊函数概论,科学出版社,1979.[6]HA Van Hoof, J. Phys. E: Jci. Instrum., 13 (1980), 1081-1089. -
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