Study on the passive-drawn fiber optic liquid analysis technique

Ai Zhou; Jiaxing Sun; Libo Yuan; Hui Xiao

doi:10.1117/12.726501

5 March 2007 Study on the passive-drawn fiber optic liquid analysis technique

Ai Zhou, Jiaxing Sun, Libo Yuan, Hui Xiao

Proceedings Volume 6595, Fundamental Problems of Optoelectronics and Microelectronics III; 659542 (2007) https://doi.org/10.1117/12.726501
Event: Fundamental Problems of Optoelectronics and Microelectronics III, 2006, Harbin, China

Abstract

The passive-drawn fiber optic liquid analysis technique, which is one new kind liquid analysis technique, is proposed. Based on the analysis technique, the passive-drawn fiber optic liquid analyzer is designed. The working principle of the analyzer and the design of the fiber-optic probe are introduced. The drawn type analysis technique is different from the traditional feeding liquid drop analysis technique. By controlling the measured liquid level ascending and descending again and again, the probe enters and exits the liquid repeatedly, and so a small liquid drop is formed at the end of the probe. By analyzing the light intensity signal reflected from the liquid drop, the physical and the chemical property parameters of the measured liquid are attained. The technique has the advantage of better repeatability and more information of the measured liquid could be gotten. Furthermore, the measuring result is not influenced by the former liquid because the fiber-optic probe can be cleaned easily and completely. Experimentally, some liquid samples have been characterized, and the information of the concentration, surface tension and viscosity is obtained. The experiment indicates that the passive-drawn fiber-optic liquid analysis technique can be used to detect the information of liquid.

Citation Download Citation

Ai Zhou, Jiaxing Sun, Libo Yuan, and Hui Xiao "Study on the passive-drawn fiber optic liquid analysis technique", Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 659542 (5 March 2007); https://doi.org/10.1117/12.726501

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