【摘要】 研究了一种对外腔式F-P干涉型(EFPI)传感器和光纤光栅(FBG)传感器进行混合测量的技术。用窄线宽的扫描光注入EFPI或FBG,通过测量FBG的反射光波长和EFPI的反射光光谱完成在同一台仪器的不同通道实现了对FBG或EFPI的同时测量。还研究了在一根光纤上同时实现FBG和EFPI测量的技术,结果表明FBG串联在EFPI前面时,可准确测量出FBG的波长和EFPI的腔长。而EFPI串联在FBG前时,只能测量EFPI,而不能完成FBG的同时测量。更多还原

【Abstract】 A hybrid-measuring technology is developed in this paper to investigate extrinsic Fabry-Perot interferometric sensor and FBGs.To realize the measurements,a scanning narrow-band light is injected into EFPI or FBG,the reflected wavelength of FBG and the spectra of EFPI are calculated.The EFPI and FBGs can also be interrogated simultaneously when they are in series in one optical fiber.The results show the wavelength of FBG and the cavity length of EFPI can be measured accurately when FBG is in the front of EFPI.FBG can not be measured if it is in the front of EFPI.更多还原