一種可調(diào)的新型永磁迴路
A NEW TYPE OF ADJUSTABLE PERMANENT MAGNETIC CIRCUIT
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摘要: 本文設(shè)計(jì)了一種可調(diào)的疊式釤鈷永磁迥路。用三層徑向磁化的釤鈷磁體和軟鐵類磁導(dǎo)材料,借助于計(jì)算機(jī),設(shè)計(jì)了沿軸向長2.0mm,磁場強(qiáng)度1.2kGs,波動(dòng)0.7％的均勻磁場,為高功率微波管的永磁聚焦系統(tǒng)提供了一種優(yōu)良的永磁迴路。
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關(guān)鍵詞:
- 電子光學(xué); 永磁聚焦系統(tǒng); 永磁迴路; 釤鈷磁鋼
Abstract: An adjustable permanent magnetic circuit that is staked by three layers of samarium-cobalt permanent magnets magnetized in radial direction and magnetic conductive material such as iron, is developed. By means of CAD, a uniform magnetic field distribution having flux density of 1.2 kGs on the axis and a fluctuation of 0.7% within the axial length of 270 mm is achieved. It is a good magnetic circuit for permanent magnetic focusing system of high power microwave tubes. -
E. L. Lein, Advance in Klystron Amplifier, 16(1973), 33-39.[2]AD-A012405, 1975, 6.[3]A. Staprans, E. W. McCune, J. A. Ruetz, PIEEE 61(1973), 299-330.[4]D. D.Hayes, S. V. Logan, Microwave Journal 16(1973)4, 37-44.[5]郎良,忻寶碌,改善高功率速調(diào)管磁聚焦的均勻性,中國科學(xué)院電子學(xué)研究所內(nèi)部資料,1963年. -
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