کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
743367 | 1462116 | 2012 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Polyvinyl alcohol coated photonic crystal optical fiber sensor for humidity measurement
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Polyvinyl alcohol coated photonic crystal optical fiber sensor for humidity measurement Polyvinyl alcohol coated photonic crystal optical fiber sensor for humidity measurement](/preview/png/743367.png)
چکیده انگلیسی
A polyvinyl alcohol (PVA) coated photonic crystal optical fiber (PCF) sensor has been proposed as a relative humidity (RH) sensor. It was fabricated by collapsing the holes of PCF at both ends to form a Michelson interferometer with cladding mode excitation. PVA was dip coated onto the sensor and the interference shift was measured when the sensor was exposed to varying RH. The sensor with 9% (w/w) coating showed a high sensitivity of 0.60 nm/%RH, displayed little hysteresis, high repeatability, low cross-sensitivity to temperature and ammonia gas and stability over 7 days of testing. A rise/fall time of 300/500 ms was achieved respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 174, November 2012, Pages 563–569
Journal: Sensors and Actuators B: Chemical - Volume 174, November 2012, Pages 563–569
نویسندگان
Wei Chang Wong, Chi Chiu Chan, Li Han Chen, Tao Li, Kok Xian Lee, Kam Chew Leong,