结构无线应变传感器设计、制作与测试

Design Development and Testing of Wireless Strain Sensor Applied to Structures

针对传统的应变采集传输方法存在的问题,结合电阻应变片工作机理,提出了一种用于结构局部应变监测的无线传感器及其系统;重点介绍了系统的核心部分,即无线应变传感器,的组成及功能;并详细讨论了该无线采集传输装置中典型电路的设计,给出了软件流程图;最后对所研制的系统进行了实验。结果表明:所研制的无线传感器及其系统,具有采集准确、传输可靠、价格低廉、携带方便、简单实用等特点,适合在实际工程中应用推广。

As there exist some problems for strain collection and transmission system, a kind of wireless sensor and system applied to structural strain monitoring is proposed according to principle of resistancestrain flake. The modules and functions of the system core, wireless strain sensor, are introduced. The design of the typical circuit is discussed, and the software flow is given. The experiment results of the designed system are given. The research indicates that the wireless collection and transmission system designed has such many characteristics as collecting in precision, transmitting reliably, low price, used simply and handily, and that it is applied compatibly to civil engineering monitoring.