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A Precision Broadband High Impedance Attenuator--Application of Isopotential Shield
Author(s): 
Pages: 39-42,23
Year: Issue:  4
Journal: JOURNAL OF ELECTRONIC MEASUREMENT AND INSTRUMENT

Abstract: 本文介绍了一种宽带精密高阻抗衰减器电路,说明如何用等电位屏蔽的方法消除串联阻容衰减器中存在的结构分布电容及继电器接点分布电容对衰减的影响,从而大大提高了工作带宽,精确度及稳定度.文中还讨论了阻容元件的选择原则以及怎样减少温度及空气湿度对电路的影响.
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