Double-parameter optical fiber sensor prepared based on chemical corrosion and welding discharge

• Main Authors: SHANGGUAN CHUNMEI, LOU XIAOPING, LI HONG, ZHU LIANQING, HE WEI, DONG MINGLI, ZHANG WEN
• Format: Patent
• Language: Chinese; English
• Published: 15.06.2018
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; TARIFF METERING APPARATUS; TESTING

The invention provides a double-parameter optical fiber sensor prepared based on chemical corrosion and welding discharge. The optical fiber sensing structure is prepared on the basis that hydrofluoric acid corrodes different optical fiber end faces and carries out welding discharge on the optical fiber end faces, so that the sensing measurement of the real-time monitoring of the double parameters of temperature and strain is realized, the double-parameter sensor is simple in structure, low in manufacturing cost, good in measurement stability and capable of solving the problem of cross sensitivity of strain and temperature, the sensor has high reference value and has important application values in the aspects of aerospace, biological medical detection, large-scale building health monitoring. 本发明提供了种基于化学腐蚀结合放电熔接制备的双参数光纤传感器，本发明基于氢氟酸腐蚀不同光纤端面并对其进行放电熔接制得光纤传感结构，实现温度和应变双参数实时监测的传感测量，该双参量传感器结构简单，制作成本低，测量稳定性好，对应力和温度的交叉敏感问题，具有较高的参考价值，同时在航空航天，生物医学检测以及大型建筑健康监测等方面都具有重要的应用价值。