CAJ | 학술논문

研究了高双折射光纤环镜监测点波长对轴向应变灵敏度的影响.经理论推导得出高双折射光纤环镜轴向应变灵敏度公式.结果表明:当高双折射光纤材料选定后,灵敏度随着监测点波长的增大而增大;当监测点选定后,监测点的灵敏度为常数,波长变化与应变成线性关系.实验选取不同波长的波峰进行应变灵敏度监测,对各监测点进行数据拟合,实验结果与理论分析一致.研究结果对提高高双折射光纤环镜应变、温度等灵敏度具有指导意义.
연구료고쌍절사광섬배경감측점파장대축향응변령민도적영향.경이론추도득출고쌍절사광섬배경축향응변령민도공식.결과표명:당고쌍절사광섬재료선정후,령민도수착감측점파장적증대이증대;당감측점선정후,감측점적령민도위상수,파장변화여응변성선성관계.실험선취불동파장적파봉진행응변령민도감측,대각감측점진행수거의합,실험결과여이론분석일치.연구결과대제고고쌍절사광섬배경응변、온도등령민도구유지도의의.
@@@@The influence of the monitoring point wavelength on the axial strain sensitivity of high-birefringence fiber loop mirror is inves-tigated. The theoretical expression for the axial strain sensitivity of high-birefringence fiber loop mirror is developed. The results show that the sensitivity increases with the wavelength of the monitoring point increasing when the high-birefringence fiber material is certain, that the sensitivity is constant and the wavelength shift is linear versus strain for the certain monitoring point. The ax-ial strain sensitivities of the different wave peaks are monitored in experiment. The experimental results of data fitting are in good agreement with the theoretical ones. The research results help to improve the strain sensitivity, the temperature sensitivity, etc. of high-birefringence fiber loop mirror.