帶鐵心任意形狀偏轉(zhuǎn)器磁場(chǎng)的計(jì)算
COMPUTATION OF THE MAGNETIC FIELD PRODUCED BY DEFLECTORS OF ARBITRARY SHAPE WITH FERROMAGNETIC SHIELD
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摘要: 本文將文獻(xiàn)[1]的分析方法推廣到帶鐵心的偏轉(zhuǎn)器,繞組形狀可以是任意的,如子午繞組、非子午繞組、鞍形、環(huán)形或扇形等。對(duì)鐵心與繞組之間有一定間隙的情況,提出了計(jì)算偏轉(zhuǎn)場(chǎng)的一種新的表示式,并用高斯-切比雪夫積分式對(duì)積分方程離散求解。最后用COTY GE-14''彩顯管偏轉(zhuǎn)器的解剖數(shù)據(jù)驗(yàn)證。
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關(guān)鍵詞:
- 電子光學(xué); 磁偏轉(zhuǎn)器; 任意形狀繞組
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''. -
沈慶垓,林文彬,謝志行,電子科學(xué)學(xué)刊,12(1990)1, 47-56.[2]D. M. Fye,J. Appl. Phys. 50 (1979), 17-22.[3]謝志行,黃達(dá)詮,沈慶垓,電子科學(xué)學(xué)刊,9(1987),17-27.[4]B. B. Dasgupta, RCA Rev., 44 (1983), 404-423.[5]王竹溪,郭敦仁,特殊函數(shù)概論,科學(xué)出版社,1979.[6]HA Van Hoof, J. Phys. E: Jci. Instrum., 13 (1980), 1081-1089. -
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