Simulation and Experimental Investigations on the Strain Measurement of the Uniform Strength Beam Using a FBG sensor
The model of force analysis on a uniform strength beam is built by the general finite element program (ANSYS software). The flexivity profile produced by uniform strength beam with different forces is simulated by ANSYS software, In experiment, a fiber Bragg grating sensor is fixed on the uniform strength beam with modified acrylate. The flexivity and strain are varied by changing the load on the end of the beam. The strain of me uniform strength beam is measured with FBG when applied force is varied from 2.45N tol4.7N with a step of 2.45N. Both the simulated and experimental results show that, the strain induced by the uniform strength beam is linear with the load force. The sensitivity is 18.32με/N for experimental measurement, and 19.72με/N for simulation. The experimental results are consistent with the simulation results, with the maximum measurement error of strain being 7.4％. It indicates that, the FBG sensor fixed with modified acrylate is proved to be effectively and reliably in the applications of civil engineering.
fiber Bragg grating sensor simulation uniform strength beam strain measurement flexivity
Yumeng Tu Huaping Gong Jixuan Chen Yongxing Jin
Institute of Optoelectronic Technology, China Jiliang University, Hangzhou, 310018, China
国际会议
3rd International Photonics & OptoElectronics Meetings(第三届国际光子与光电子学会议 POEM 2010)
武汉
英文
1-7
2010-11-03（万方平台首次上网日期，不代表论文的发表时间）