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 |