کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7135479 1461867 2015 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel demodulation scheme for high precision quasi-distributed sensing system based on chaotic fiber laser
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
A novel demodulation scheme for high precision quasi-distributed sensing system based on chaotic fiber laser
چکیده انگلیسی
A novel demodulation scheme for strain measurement is proposed and demonstrated for a high precision quasi-distributed sensing system based on chaotic fiber laser. Using a cross-correlation algorithm, strain sensing and precise locating can be simultaneously achieved based on the amplitude variation and time delay of a cross-correlation peak. The relationship between the correlation peaks and wavelength shift of weak FBGs induced by strain is theoretically and experimentally analyzed. Experimental results show the strain deviation of 14 μϵ, and the spatial resolution is up to 7 mm. Multi-point synchronous measurements has also been implemented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 233, 1 September 2015, Pages 427-433
نویسندگان
, , , , , ,