中文 |

Measure Dissolved Gas Directly in Water with Tapered Fiber

Author: YANG Linan |

A groundbreaking study led by researchers from the Changchun Institute of Optics, Fine Mechanics and Physics at the Chinese Academy of Sciences has introduced a novel technique for directly measuring dissolved gases in aquatic environments using a tapered single-mode silica fiber. This method, published in the journal Sensors, offers a faster and more efficient alternative to traditional membrane-based laser absorption techniques.
The aquatic environment is rich in dissolved gases, including oxygen, carbon dioxide, and methane, which play a crucial role in supporting aquatic life and influencing global climate change. Accurate measurements of these gases are essential for understanding their ecological and environmental impacts. However, traditional methods involving permeable membranes often suffer from long water-gas separation times, limiting their efficiency.
In the study,The researchers employed a tapered single-mode silica fiber to directly measure dissolved gases in water. The tapered fiber, with its unique optical properties, allows for enhanced sensitivity and faster response times compared to conventional sensors. The researchers demonstrated the effectiveness of this method by successfully measuring dissolved oxygen in water samples.
The research process involved fabricating the tapered fiber and developing a specialized measurement system. Once complete, the system was tested on various water samples, demonstrating its ability to accurately measure dissolved gases within a short time frame. The results indicate that this new method has the potential to revolutionize dissolved gas monitoring in aquatic environments.
The significance of this study lies in its potential to improve the efficiency and accuracy of dissolved gas measurements in aquatic environments. The direct measurement approach using a tapered silica fiber eliminates the need for permeable membranes, significantly reducing water-gas separation time. This not only speeds up the measurement process but also improves the accuracy of the results.
In conclusion, the research conducted by the team represents a significant step forward in the field of dissolved gas monitoring. The introduction of a tapered single-mode silica fiber as a direct measurement tool offers a promising alternative to traditional methods and has the potential to revolutionize our understanding of the aquatic environment.
Contact

WANG Qiang

Changchun lnstitute of Optics, Fine Mechanics and Physics

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