Quantitative Sensitivity Analysis of Surface Attached Optical Fiber Strain Sensor

摘要: Optical fiber strain sensors, in particular, the Bragg grating (FBG) type, are widely applied different applications. The most common installation method is surface-attached. In principle, optical sensor with adequate sampling and signal processing techniques usually more accurate than electrical resistive gauge. However, of surface structure may not transfer to sensing element perfectly. ratio between measured actual can be correlated by a factor (STF). it depends on material geometrical properties adhesive. It noneconomical impractical measure STF for every installed sensor. desirable identify sensitive parameters variation so that quality control assurance procedure performed efficiently. this paper, quantitative global sensitivity analysis, called extended Fourier amplitude test will compute first-order total indexes based well-established semi-analytical/empirical mechanical model three five both integral FBG type two kinds polymeric coating under types field 16 configurations. From detail bond length, thickness adhesive beneath deviation position, which related workmanship instead