標題: Measurement of Organic Chemical Refractive Indexes Using an Optical Time-Domain Reflectometer
作者: Yeh, Chien-Hung
Chow, Chi-Wai
Sung, Jiun-Yu
Wu, Ping-Chun
Whang, Wha-Tzong
Tseng, Fan-Gang
材料科學與工程學系
光電工程學系
Department of Materials Science and Engineering
Department of Photonics
關鍵字: fiber sensor;OTDR;refractive index (RI)
公開日期: 1-一月-2012
摘要: In this investigation, we propose and experimentally demonstrate a method for measuring the refractive index (RI) of liquid organic chemicals. The scheme is based on a single-mode fiber (SMF) sensor and an optical time-domain reflectometer (OTDR). Here, due to the different reflectance (R) between the SMF and organic liquid chemicals, the reflected power level of the backscattering light (BSL) measured by the OTDR would be different. Therefore, we can measure the RI of chemical under test via the measured BSL level. The proposed RI sensor is simple and easy to manipulate, with stable detected signals, and has the potential to be a valuable tool for use in biological and chemical applications.
URI: http://dx.doi.org/10.3390/s120100481
http://hdl.handle.net/11536/15277
ISSN: 1424-8220
DOI: 10.3390/s120100481
期刊: SENSORS
Volume: 12
Issue: 1
起始頁: 481
結束頁: 488
顯示於類別:期刊論文


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