%0 Journal Article
%T Fiber-optical grating sensing based on flextensional member<br>基于弯曲伸张结构的光纤光栅传感研究
%A Zhang Jing-Hu
%A Qiao Xue-Guang
%A Feng Zhong-Yao
%A Hu Man-Li
%A Gao Hong
%A Zhou Rui
%A Yang Yang
%A <br>张敬花
%A 乔学光
%A 冯忠耀
%A 忽满利
%A 高宏
%A 周锐
%A 杨扬
%J 物理学报
%D 2012
%I 
%X Based on the structure health monitoring of civil engineering structure such as bridges, dams, high-rise building, the fiber Bragg grating sensor is used to achieve the real-time monitoring and diagnosis of structural performance, in order to discovery the damage and to evaluate the safety of structure. Fiber-optical grating sensing based on flextensional member is proposed. The measuring of pressure, strain and acceleration can be realized. The strain of camber beam belly is analysed theoretically and verified experimentally. The strain of the camber beam belly is proportional to the pressure and acceleration in the vertical direction. Its biggest advantage is small size under the same sensitivity. The transverse dimensions is limited in well and the longitudinal acceleration needs to be measured, so beam based sensor structure are not likely to be used. Under the condition of measuring longitudinal acceleration sensor structure, beam pumping are not likely to be used. This new type of flextensional member elastic sensitive structure can serve as elastic element for the design of fiber bragg grating strain, weighing and pressure, and acceleration sensor.
%K fiber-optical grating
%K flextensional member<br>光纤光栅传感
%K 弯曲伸张结构
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=9B2BCA8CA9CB30DFA42E4CE463F32305&yid=99E9153A83D4CB11&vid=1D0FA33DA02ABACD&iid=94C357A881DFC066&sid=2EE59CA429888228&eid=2EE59CA429888228&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=18