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【期刊论文】Passive Temperature Compensation Technique for Fiber Bragg Grating Displacement Sensor
余有龙, Youlong Yu, Hwayaw Tam, Zhiguo Liu, and Wenghong Chung
,-0001,():
-1年11月30日
A novel fiber Bragg grating displacement sensor is introduced. Using a uniform density and thickness overlapped dual-isosceles triangular cantilever beam as strain agent, this sensor is demonstrated experimentally and theoretically to be able to compensate the wavelength-shift induced by temperature automatically. The measured sensitivity of this sensor is 0.1051nm/mm within the working range of-18, 18mm.
fiber optics, Bragg gratings, displacement measurement, sensors, compensation.,
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余有龙, 谭华耀, 王骐
光学学报,2001,21(11):1314~1315,-0001,():
-1年11月30日
受1×3光开关控制,脉冲宽带光波被导入3×5光栅传感器阵列中待查询的任一光栅串,根据传感元间光 纤延时程度的不同,利用电子程控开关,对来自不同光栅信号的选择通导,借助非平衡迈克耳孙扫描干涉仪对传感 信息进行解调,成功地实现了空、时分复合复用传感。
光纤光栅, 传感网络, 时分复用, 空分复用, 时、空分复合复用, 干涉解调
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【期刊论文】Optical XOR and NXOR logic operations with erasable self-pumped phase conjugation
余有龙, Youlong Yu, Zuohong Jiang, Jie Ying and Xiaoyi Dong
,-0001,():
-1年11月30日
The phenomenon of erasable self-pumped phase conjugation (SPPC) is explained theoretically. Encoded by intensity, all-optical XOR and NXOR logic functions are performed experimentally by controlling the incident and the erasure beams of SPPC. The time response curves of both operations are shown.
self-pumped phase conjugation, optical logic operation
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【期刊论文】Fiber Bragg Grating Sensor for Simultaneous Measurement of Displacement and Temperature
余有龙, Youlong Yu, Hwayaw Tam, Wenghong Chung, and Muhtesem Suleyman Demokan
,-0001,():
-1年11月30日
A new approach for measuring displacement and temperature simultaneously using a specially designed isosceles triangular cantilever beam as a strain agent is demonstrated. A fiber Bragg grating epoxied on the beam surface is experimentally demonstrated to have a temperature sensitivity of about 0.113 nm/℃ below 60℃.
optical fiber sensors, displacement measurement, temperature measurement,, fiber Bragg grating, sensitivity
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【期刊论文】高分辨率单信道输出的光纤光栅传感系统时域地址查询技术*
余有龙, 谭华耀, 何海律, 锺永康
学学学报,2001,21(7):875~877,-0001,():
-1年11月30日
脉冲宽带光源发出的光波进入4个光栅组成的光栅串时,根据传感元间光纤延时程度的差别进行时域地址查询。借助非平衡迈克耳孙(Michelson)扫描干涉仪对传感信息进行解调,系统的应变传感分辨率为6,而灵敏度的实验值为1163°。
光纤光栅, 传感网络, 时域地址查询, 干涉解调, 单信道输出
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55浏览
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