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Development of Simultaneous Measurement System for Strains and AE Using Multiple FBG Sensors(For Structural Health Monitoring of Solid Space Rocket Composite Motor Case)

机译:多个FBG传感器对菌株和AE的同时测量系统的开发(用于固体火箭复合发动机壳体的结构健康监测)

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Research was conducted to apply fiber Bragg grating (FBG) sensors,a kind of optical fiber sensor,to structural health monitoring of solid space rocket composite motor-cases.A new measurement system was developed as a result of the research.The system possesses two light sources.When using multiple fiber ring lasers as the light source,the system can simultaneously measure strains of up to 1% and Acoustic Emission (AE) using multiple FBG sensors.When a broadband light source is used,the system can also measure very fast strains.The system was applied to a pressure test for system evaluations in the development of Epsilon Launch Vehicle.
机译:进行了将光纤布拉格光栅(FBG)传感器(一种光纤传感器)应用于固体航天火箭复合发动机壳体的结构健康监测的研究。研究结果是开发了一种新的测量系统。该系统具有两个当使用多个光纤环形激光器作为光源时,该系统可以使用多个FBG传感器同时测量高达1%的应变和声发射(AE)。当使用宽带光源时,该系统还可以测量该系统已应用于Epsilon运载火箭开发中的压力测试以进行系统评估。

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