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1. 发明申请

WO2007131794A2 REINFORCEMENT ELEMENT WITH SENSOR FIBER, MONITORING SYSTEM, AND MONITORING METHOD 审中-公开
标题翻译：具有传感器光纤，监测系统和监测方法的增强元件
公开(公告)号：WO2007131794A2
公开(公告)日：2007-11-22
申请号：PCT/EP2007/004392
申请日：2007-05-16
申请人： BAM , STFI e.V. , HABEL Wolfgang , KREBBER, Katerina , THIELE, Elke , ARNOLD, Rolf , GLÖTZL, Rainer
发明人： HABEL Wolfgang , KREBBER, Katerina , THIELE, Elke , ARNOLD, Rolf , GLÖTZL, Rainer
CPC分类号： E02B3/122 , D04B21/16 , D10B2403/02431 , D10B2505/204 , E02B3/10 , G01D5/35364 , G01M11/086
摘要： A reinforcement element, comprises at least one sensor fiber adapted for strain measurements based on stimulated Brillouin scattering within said sensor fiber. Furthermore, a system for monitoring strain within a structure comprises a reinforcement element comprising at least one sensor fiber adapted for strain measurements based on stimulated Brillouin scattering within said sensor fiber, a pump laser for coupling in laser radiation of a pump frequency into said at least one sensor fiber, a Stokes laser for coupling in laser radiation of a Stokes laser radiation into said at least one sensor fiber, wherein the pump frequency and the Stokes frequency are different from one another and wherein the frequency difference between the pump and Stokes frequencies is within the range of acoustical phonons within said sensor fiber, a sensor adapted to obtain a stimulated Brillouin backscattering signal, and a network analyzer adapted for determining the complex transfer function of the sensor fiber to determine a spatially resolved strain measurement.
摘要翻译：增强元件包括至少一个适于基于所述传感器光纤内受激布里渊散射的应变测量的传感器光纤。此外，用于监测结构内的应变的系统包括加强元件，该加强元件包括适于基于所述传感器光纤内的受激布里渊散射的应变测量的至少一个传感器光纤，用于将泵浦频率的激光辐射耦合到所述至少一个一个传感器光纤，斯托克斯激光器，用于将斯托克斯激光辐射的激光辐射耦合到所述至少一个传感器光纤中，其中泵浦频率和斯托克斯频率彼此不同，并且其中泵和斯托克斯频率之间的频率差为在所述传感器光纤内的声学声子的范围内，适于获得受激布里渊后向散射信号的传感器和适用于确定传感器光纤的复数传递函数以确定空间分辨应变测量的网络分析仪。

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