光纤布拉格光栅
材料科学
光学
悬臂梁
磷
超声波光栅
波长
长周期光纤光栅
光纤传感器
栅栏
全息光栅
纤维
光电子学
色散位移光纤
衍射光栅
复合材料
物理
标识
DOI:10.1088/0957-0233/19/12/125302
摘要
A new fiber-optic sensor system consisting of a fiber Bragg grating cantilever as a transducer is proposed and demonstrated to realize simultaneous measurement of fluid flow rate and direction. For the fiber Bragg grating mounted on either a stainless steel or a spring steel substrate, a change in the water flow rate gives rise to a monotonic shift in the Bragg resonance wavelength of the grating while the flow direction results in either a redshift or a blueshift in the Bragg wavelength due to a stretched or shrunk state of the grating. Shifts in the Bragg resonance wavelength of 0.077 and 0.826 nm at a water flow rate of 90 cm3 s−1 were achieved with the fiber Bragg grating stainless steel and spring steel cantilever sensors, respectively. The experimental results are in good agreement with the theoretical analysis.
科研通智能强力驱动
Strongly Powered by AbleSci AI