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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/23857

Title: The study of fabrication of the liquid core waveguide nutrient sensor
Authors: Chih Wei Wu;Yung Kang Shen;Yi Lung Lee;Chung Sheng Wei;Chun Ching Hsiao
Contributors: NTOU:Department of Mechanical and Mechatronic Engineering
國立臺灣海洋大學:機械與機電工程學系
Keywords: Liquid Core Waveguide;Nutrient Sensor;Teflon AF 1601S
Date: 2007-12
Issue Date: 2011-10-20T08:08:29Z
Publisher: Key Engineering Materials
Abstract: Abstract:A novel nutrient sensor using liquid core waveguide technique is reported, implementing Teflon AF 1601S coated microchannels. Straight PDMS microchannels replicated from a master were coated with Teflon AF 1601S and sealed with a Teflon AF 1601S coated Pyrex 7740 wafer. It formed a liquid core waveguide with a low index of refraction channel in which a high index aqueous solution was flowed. Light generated by a fiber-coupled tungsten halogen lamp propagated by total internal reflection to the end of the channel where the light was detected using a CCD array spectrometer. There is a dramatic difference between channels with and without a Teflon coating. The absorbance response of this sensor varies linearly with concentration. This innovative technique provides a potentially low-cost and high efficient approach to fill the inspection technology gap between in-situ and laboratory analyses. It is believed that the novel process is expected to give an impact to the aqueous inspection and to create a highly value-added technology in optical test, measurement industry.
Relation: 364-366, pp.425-430
URI: http://ntour.ntou.edu.tw/handle/987654321/23857
Appears in Collections:[機械與機電工程學系] 期刊論文

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