激光与光电子学进展, 2016, 53 (4): 042803, 网络出版: 2016-03-25
基于密集波分复用器的光纤光栅压力传感器解调方法 下载: 618次
Dense Wavelength Division Multiplexing-Based Demodulation of Fiber Bragg Grating Pressure Sensor
传感器 波长解调算法 密集波分复用器 光纤光栅传感器 谱效应 sensors wavelength demodulation algorithm dense wavelength division multiplexing fiber Bragg grating sensor spectrum effect
摘要
结合悬臂梁调谐技术与波登管压敏结构,设计实现了光纤光栅压力传感器。提出了一种新型的利用波长解调算法与50 GHz 密集波分复用器相结合的技术来确定窄带反射光谱在信道中的准确位置。结果表明,在0~6 MPa 的测量范围内,压力测量的相对误差为0.5%,波长分辨力δλ 近似为0.1 pm,传感器解调灵敏度达到3×103 nW/MPa。
Abstract
By applying Bourdon tube and tunable filter technology, a fiber Bragg grating pressure sensor is designed. The 50 GHz dense wavelength division multiplexing- based and wavelength demodulation algorithm are adopted to locate the exact position of narrowband reflection spectrum in the channel. The results of wavelength demodulation system show that the fiducial error is only 0.5% under the range of 0~6 MPa, and the resolution of the wavelength which comes from the measured experimental can reach 0.1 pm. The demodulation sensitivity of the sensor resolution is 3×103 nW/MPa.
王辉, 杨洋, 刘兵. 基于密集波分复用器的光纤光栅压力传感器解调方法[J]. 激光与光电子学进展, 2016, 53(4): 042803. Wang Hui, Yang Yang, Liu Bing. Dense Wavelength Division Multiplexing-Based Demodulation of Fiber Bragg Grating Pressure Sensor[J]. Laser & Optoelectronics Progress, 2016, 53(4): 042803.