The working theory of D.C. amplifiers of the bridge type with electrometer tubes

WHoung jin-jang

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The working theory of D.C. amplifiers of the bridge type with electrometer tubes

更新时间：2025-12-08

- The working theory of D.C. amplifiers of the bridge type with electrometer tubes
- Acta Electronica Sinica Issue 2, Pages: 33-62(1963)
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- Published：1963
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[1]黄经錚.静电计电子管桥式直流放大器工作原理[J].电子学报,1963(02):33-62.

WHoung jin-jang. The working theory of D.C. amplifiers of the bridge type with electrometer tubes[J]. Acta Electronica Sinica, 1963, (2): 33-62.
[1]黄经錚.静电计电子管桥式直流放大器工作原理[J].电子学报,1963(02):33-62. DOI：

WHoung jin-jang. The working theory of D.C. amplifiers of the bridge type with electrometer tubes[J]. Acta Electronica Sinica, 1963, (2): 33-62. DOI：

摘要

根据静电计电子管特性的测量结果

静电计管桥式直流放大器

例如杜伯利智及巴特电路

对于零点漂移与起伏的补偿作用

是由电子管本身的特性来决定的。电子管的补偿特性可以用一组方程式来描写。由方程组的设计计算与实验符合。同时

并根据电子管的特性

导出一个半实验性的放大器电路设计方法

及放大器增益的计算方法。对遇到的新现象

作者用称为空间电荷效应半饱和的概念来解析。

Abstract

It is found by the measurement of charaeteristie of electrometer tubes that the com-pansation effect to zero drift and fluctuation of amplifiers with bridge type

such as Du-Bridge’s and Barth’s circuit

are characterized by the tube itself. The points of compa-nsation characteristic may be deseripted by a set of equaltions. The design calculation from the equaltions fit with experiments. At the same time a semi-experimental method for circuit design

and a calculation method for the gain of amplifiers are driven

A conception of half-saturation of space charges effect

is given for explanation about the new phenomena met here.

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