摘要
为了实现物体重量的测量,分析了光纤光栅传感器的结构和原理;研究了应变和温度交叉敏感以及波长解调等FBG传感技术应用的关键问题。根据对承重台受力的分析,设计了承重台的结构和传感器的安装方式,而且,摸索到了光栅传感技术的一些使用经验和注意事项,这些可为高速公路汽车称重系统所借鉴。利用FBG210解调仪在信号采集,分析,存储和传输等方面的优势,实现了光纤光栅解调。使用处理器对解调出的重量信号进行处理,并将其显示在LCD上。
The structure and principle of fiber grating sensor measuring the object＇s weight are analyzed. Some key issues of fiber Bragg grating （FBG） is also studied, such as the temperature and strain cross sensitivity, wavelength demodulation. Based on the pressure analysis of the load-bearing platform, the structure of the load-bearing platform is design and the fixing fashions of the sensors are given. Many of experiences and needing attentive issues are obtained as well, which are useful references in the freeway vehicle weighing system. Making use of the advantages of FBG210 interrogator in data acquisition, signal analysis, data storage and communication, FBG demodulation is realized. The demodulated weight signals are processed and displayed on the LCD by using microprocessor.
出处
《传感器世界》
2007年第1期31-33,共3页
Sensor World
