【作者】 张文涛； 戴静云； 孙宝臣；

【Author】 ZHANG Wen-tao(1,2) DAI Jing-yun SUN Bao-chen~1 (1.Key Lab of Structure Health Monitoring and Control of Hebei Province,Shijiazhuang 050043,China; 2.State Key Laboratory on Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China)

【机构】 河北省大型结构健康诊断与控制重点实验室；

【摘要】 设计制作了一种金属封装的光纤法珀温度传感器,该传感器采用不锈钢毛细金属管代替传统的空心光纤对光纤法珀腔进行封装,毛细金属管在作为法珀腔腔体的同时也是温度敏感元件。采用该结构简化了光纤法珀温度传感器的封装工艺,理论分析和实验的结果表明,该金属封装结构使得传感器的灵敏度易于控制,对于腔长为10mm 的温度传感器其精度达到±0．5℃。更多还原

【Abstract】 A novel Fabry-Perot temperature sensor based on steel capillary encapsulation was pro- posed.A stainless steel capillary was used instead of the traditional hollow center optical fiber for the Fabry-Perot cavity,and it acted as the sensing element.Thus the craft of the fabrication was simplified.Both the theoretical analysis and experimental results show that the sensitivity of the sensor is easy to control,and the sensitivity reaches to±0.5℃ of the sensor with gauge length of 10 mm.更多还原