کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
743726 | 894369 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An optical fiber methane sensing system employing a two-step reference measuring method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
An optical fiber methane sensing system utilizing a super-luminescent diode (SLD) in the 1.33-μm band and a fiber Fabry–Perot tunable filter (FFP-TF) is developed. A two-step reference measuring method, which is based on differential absorption technique, is employed; a reference channel is introduced to eliminate the fluctuation of the illuminant spectrum, and the reference wavelength acquired by tuning the FFP-TF is introduced to eliminate the environmental influence. The two-step reference measuring method has improved the reliability and stability of the system. A minimum detectable methane concentration of ∼0.3% has been experimentally achieved.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 133, Issue 1, 28 July 2008, Pages 174–179
Journal: Sensors and Actuators B: Chemical - Volume 133, Issue 1, 28 July 2008, Pages 174–179
نویسندگان
Yi Jiang, Caijie Tang,