High Precision and Range of Concentration Measurement for Sediment-Water Mixture based on Time Domain Reflectometry

Chih Ping Lin, Yin Jeh Ngui, I. Ling Wu, Chih Chung Chung, Wan Ting Lin

研究成果: 書貢獻/報告類型會議論文篇章同行評審

1 引文 斯高帕斯(Scopus)

摘要

Concentration measurement of sediment-laden flow is crucial in studying river morphology, impact of climate change on sediment yield from watershed, reservoir sedimentation management, and ecological impact. Suspended sediment concentration (SSC) in above applications ranges from sub 1g/L (1000 ppm) in natural streams to over 500 g/L (500,000 ppm) in dredging production. Particle size dependency is also an issue on top of the challenge to meet such a wide measurement range for any measurement technique. Dielectric-based method is recently developed to overcome these challenges using time domain reflectometry (TDR) technique. This study aimed to enhance the measurement precision and range through an advanced signal processing technique and a rigorous frequency-dependent dielectric mixing model. Probe and material factors were investigated to rationalize the necessary calibration. Experiments on both the lower SSC range and high SSC range verify the excellent performance of TDR method for SSC measurements.

原文???core.languages.en_GB???
主出版物標題2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, ISEMA 2021
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781728187365
DOIs
出版狀態已出版 - 2021
事件13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, ISEMA 2021 - Kiel, Germany
持續時間: 26 7月 202130 7月 2021

出版系列

名字2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, ISEMA 2021

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???event.eventtypes.event.conference???13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, ISEMA 2021
國家/地區Germany
城市Kiel
期間26/07/2130/07/21

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