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
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله

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
Journal: Sensors and Actuators A: Physical - Volume 233, 1 September 2015, Pages 427-433
نویسندگان
Jun Zhang, Lingzhen Yang, Huanhuan Yang, Li Zhang, Juanfen Wang, Zhaoxia Zhang,