CAJ | 학술논문

为了解决实际工程应用中光纤光栅和分布式布里渊共线技术测试应变的绝对温度补偿方法成本较高、不易布设等问题,采用光纤布里渊和布喇格光栅共线技术应变感知的温度互补偿方法,通过感知探头--双光纤光栅-纤维增强复合智能筋的室内和户外温度补偿试验探讨了该方法的有效性和适用性.结果表明,该方法可以实现光纤布里渊和光纤光栅的准分布式温度互补偿,误差低于8%,在工程接受范围内.此外,该技术还能同时给出应变和温度双参量测试结果,简化了传感系统,降低了布设成本,适合实际工程应用.
위료해결실제공정응용중광섬광책화분포식포리연공선기술측시응변적절대온도보상방법성본교고、불역포설등문제,채용광섬포리연화포나격광책공선기술응변감지적온도호보상방법,통과감지탐두--쌍광섬광책-섬유증강복합지능근적실내화호외온도보상시험탐토료해방법적유효성화괄용성.결과표명,해방법가이실현광섬포리연화광섬광책적준분포식온도호보상,오차저우8%,재공정접수범위내.차외,해기술환능동시급출응변화온도쌍삼량측시결과,간화료전감계통,강저료포설성본,괄합실제공정응용.
In order to solve the problems that absolute temperature compensation for strain sensing of single line optical fiber sensors based on Brillouin and fiber Bragg grating encounters,e.g.high cost and difficulty of installation,a novel temperature inter-compensation method was presented.Based on a sensor,i.e,a dual fiber reinforced polymer-fiber Bragg grating rebar,experiments were carried out under room and outdoor environments.The results show that the temperature inter-compensation can be easily realized with a practically acceptable error less than 8%.Moreover this method can also give the dual parameters of strain and temperature values simultaneously.The system based on optical fiber sensors is suitable for practical applications for its simple structure and low cost.