| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a sensing system and sensor, for more detail, a sensing system including an array of a grading type optical fiber gas sensor for measuring temperature-corrected gas concentration. <P>SOLUTION: The optical fiber gas sensor (20) includes a fiber core (32), and first and second refractive index periodic modulated grating structures (36, 38) having different amplitude modulation profiles positioned around the fiber core. A fiber cladding (40) is positioned around the first and second refractive index periodic modulated grating structures. A sensing layer (42) is positioned around the fiber cladding of one of the refractive index periodic modulated grating structures. The sensing layer includes a sensing material made of a Pd-based alloy, such as nano-PdOx, nano-Pd(x)Au(y)Ni(1-x-y) or nano-Pd/Au/WOx. The optical fiber gas sensor measures localized temperature-corrected gas concentration and composition from a combustion environment. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
