An Intelligent Null Indicator

Gu Le-tian

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An Intelligent Null Indicator

更新时间：2025-12-08

- An Intelligent Null Indicator
- Acta Electronica Sinica Issue 3, Pages: 107-109(1988)
- 作者机构：
  
  中国电子产品可靠性与环境试验研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1988
- 稿件说明：
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[1]古乐天.智能零差指示器[J].电子学报,1988,{4}(03):107-109+125.

Gu Le-tian. An Intelligent Null Indicator[J]. Acta Electronica Sinica, 1988, (3): 107-109.
[1]古乐天.智能零差指示器[J].电子学报,1988,{4}(03):107-109+125. DOI：

Gu Le-tian. An Intelligent Null Indicator[J]. Acta Electronica Sinica, 1988, (3): 107-109. DOI：

摘要

说明以最小二乘拟合方法作零差指示的设计思想

并导出在自增控放大系统中的拟合曲线数学模型;讨论了其工程设计方法及近似误差。实验证明这种以软件为主的零差指示器具有良好的分辨率和准确性。

Abstract

The design idea of an intelligent null indicator which is based on least square regression method

is discussed and the mathematic model of regression curve of an auto-gain controlled amplifier system is derved. Discussion about the design method and its approximate errors is given. The fact that this kind of null indicator

which is based on software

has good retolution and high accuracy is shown by the results of pualification.

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