کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1535938 | 1512636 | 2012 | 5 صفحه PDF | دانلود رایگان |
A method for the simultaneous, independent measurement of temperature and force using a single in-fiber Bragg grating (FBG) sensors was proposed and demonstrated. The FBGs were partially metallized using a partial nickel coating method. A Bragg reflex peak was successfully divided into two reflex peaks during the partial nickel plating process. The metallized part of the FBG was soldered on a steel cantilever, and the non-metallized part hanged in air. Using a structure that is composed of the steel cantilever soldered with a dual-wavelength FBG, the temperature and pressure can be simultaneously measured and discriminated. The metallized part of the FBG is highly temperature-sensitive (about 26.1 pm/°C), and for the non-metallized part the original Bragg wavelength of the FBG remains unchanged. The force sensitivity of the metallized part which soldered on the cantilever remained at 82 pm/N from 30 to 90 °C.
Journal: Optics Communications - Volume 285, Issues 21–22, 1 October 2012, Pages 4275–4279