2 February 2009 Sol-gel coated planar optical sensor for high resolution oxygen measurement
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Oxygen detection techniques are essential for marine environment and ecology researches. In this paper, the development of luminescence intensity-based sensor system for dissolved oxygen (DO) measurement is presented. The sensor film consists of tris(2,2-bipyridyl)ruthenium(II) (Ru(bpy)3Cl2) as photosensitive indicator which is immobilized within the mixture of tetraethoxylsiane (TEOS) and methyl triethoxysilane (MTEOS) membrane. The laboratory experimental results show that the ratio of the fluorescence intensity of the sensor correlates well with DO concentration from 0 to 32.96 mg/l. Depending on the charge-coupled device (CCD) camera used, the proposed system can monitor the 0.9×0.9 cm areas with 9×9 μm resolutions and it can be used for oxygen distribution measurement in spatial and temporal scale for undersea monitoring applications.
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Jifeng Liu, Jifeng Liu, Xinsheng Yu, Xinsheng Yu, Yulan Zhai, Yulan Zhai, } "Sol-gel coated planar optical sensor for high resolution oxygen measurement", Proc. SPIE 7157, 2008 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications, 715707 (2 February 2009); doi: 10.1117/12.806679; https://doi.org/10.1117/12.806679

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