交流不平衡电桥的电压灵敏度分析

JIMI

论文编号ZXX035  论文字数:6940,页数:22
摘要
 21世纪的社会是信息社会。信息社会的特征是人类社会活动和生产活动的信息化。现代信息科学的三大支柱包括信息采集―传感技术；信息传递―通信技术；信号处理―计算机技术。传感器既是现代信息系统的源头，又是信息社会赖以生存和发展的物质技术基础。如果没有先进的传感技术，通信技术和计算机技术也就成了无源之水，无本之木。因此，研究和发展传感技术是生产过程自动化和信息时代的必然需求。
 交流不平衡电桥是电阻、电容和电感式传感器最基本的一种测量电路。在使用中，用户可以有不同组桥方式，在实验中发现，交换信号源的两根输出线及平衡指示器的两根输入线的位置，测量结果明显不同。
 本文将根据交流不平衡电桥的不同的组桥方式，进行电桥的电压灵敏度的理论分析，并根据理论推导结果进行比较，给出解决该问题的方法。
关键词：交流电桥，不平衡电桥，电压灵敏度

ABSTRACT
 21st century society is the Information Society. Information society is characterized by Information technology of the activities of human society and production activities. Modern information science includes three main things; collection - sensing technology; information transmission - communication technologies; signal processing - computer technology. Sensor is the source of  modern information system ,and the  material and technical basis of  the survival and development in the information society also. If there are no advanced sensor technology, Communication technology and computer technology will be nothing. Therefore, the research and development of the sensor technology is inevitable demand for the Automation of the production process and the information age.
 A.C unbalanced bridge is the basic measure circuit of the resistance , capacitance and inductance type transducer. User can have different bridge in use ,research found that exchange the location of the two output line of signal source and the two input line of the the balance indicator ,the result is obviously different.
    In this essay, we analysis the sensitivity of the a.c unbalanced bridge based on the different bridge of the a.c unbalanced bridge, and based on the theoretical results, then we will give out the method of solving the problem.
 Keywords: A.C Bridge, Unbalanced Bridge, Sensitivity.
目录
摘要 I
ABSTRACT II
第1章 引言 1
1.1 背景 1
1.2 研究内容 1
第2章 测量电桥 3
2.1 概述 3
2.2 电桥的分类[2] 3
2.3 电桥在检测中的应用 4
2.4 课题的提出 7
第3章 交流不平衡电桥 8
3.1 交流不平衡电桥的电压灵敏度分析 8
3.2 交流不平衡电桥单臂工作输出特性 10
3.3 两种不同的电压灵敏度交流电桥 14
3.4 实验结果与结论 15
第4章 结束语 17
致谢 18