电桥在应变式传感器中的应用研究与分析大学生毕业论文（设计）.doc

2014届毕业生 毕业论文 题 目: 电桥在应变式传感器中的应用研究与分析 院系名称： 专业班级： 学生姓名： 学 号： 指导教师： 教师职称： 年 月 日  摘 要 信息科学是众多领域中发展最快的一门学科，也是最具有发展活力的学科之一。信息科学中的四大环节（信息捕获、提取、传输、处理）时人们最关心、对社会发展和进步起着十分重要的作用的重要内容。信息捕获技术是信息科学最前端的一个阵地和手段，而信息捕获的主要工具就是传感器。传感器作为测控系统中对象信息的入口，在现代化事业中的重要性已被人们所认识。随着信息时代的到来，国内外已将传感器技术列为优先发展的科技领域之一。 自电桥测量原理问世至今的一百六十余年以来，人们相继研制和应用了品种繁多、技术指标各异的测量电桥。可以说，电桥在电气与电子测量技术领域里担负着准确地测量电阻、电容、电感、互感等电路参数和其它与此相关的待测量的重要作用。本文通过对几种电桥的理论与实验验分析，论证了全桥电桥的优越性与准确性，并通过称重传感器的具体事例来论述电桥在传感器电路中的应用。 关键词：传感器、惠斯通电桥、非线性分析、灵敏度分析、称重传感器 Title Bridge application research and analysis on the strain sensor Abstract Information science is one of the fastest growing in many fields subjects, also is one of the most dynamic subjects in the most. Four links of information science (information capture, extraction, transmission, processing) when people most concerned about, to the social development and progress is an important content of plays a very important role. Information capture technology is one of the most front end position and information science, and the main tools of information capture is sensor. Sensor as the measurement and control system in the entry of the object information, the importance in the modernization drive has been known. With the coming of information age, both at home and abroad have given priority to the development of sensor technology as one of the areas of science and technology. Since bridge principle come out of more than one hundred and sixty years ago, people have developed and applied a variety, various technical indicators measuring bridge. Bridge, as it were, in the field of electrical and electronic measurement technology for the accurately measuring the resistance, capacitance and inductance, mutual inductance circuit parameter and other related to the important role of measurement. This article through the analysis of the the