Fiber Bragg grating packaged by carbon fiber-reinforced plastic

Carbon fiber composite materials are used in the package of the fiber Bragg grating in the aim of protection.Under the influence of applied stress,deformation of carbon fiber composite materials occurs,thereby the strain of fiber Bragg grating which paste on the carbon fiber composite materials associated with the Bragg wavelength shift.Connected to optical signal processing devices,the wavelength can be easily read.The design converts the strain of carbon fiber composite material into the fiber Bragg grating peak wavelength.While the reinforcement of CFRP to structure,monitoring by the pre-embedded CFRP fiber Bragg grating can be carried out.The intelligent item which is of the function of reinforcement and monitoring is formed which can be longterm used for real-time health monitoring.