Measurement of interface deformation and magnetic field distribution at a conducting two-fluid system

Sievert, Carsten

An experiment for magnetic and optical measurements of a fluid-fluid interface was set up. The fluids were Galinstan and an aqueous solution of KOH (Potassium Hydroxide). A current was vertically passed through the system. The experment allowed to generate different interface modes and measurements using a magnetic multi-sensor system (Fluxgate Sensors) and different optical methods (video camera, laser vibrometers). The flux density data gathered during the experiments makes detection and reconstruction of the (1,1) and the (2,1) interface mode possible. The (1,1) mode was found to have a very strong amplitude of several mm. The (1,2) mode exists, but was rather instable. Additional experiments have been performed with a reduced amplitude of the (1,1)-mode. This was made possible by a modified electrolyte (Glycerol added). An improved sensor setup was prepared.

An experiment for magnetic and optical measurements of a fluid-fluid interface was set up. The fluids were Galinstan and an aqueous solution of KOH (Potassium Hydroxide). A current was vertically passed through the system. The experment allowed to generate different interface modes and measurements using a magnetic multi-sensor system (Fluxgate Sensors) and different optical methods (video camera, laser vibrometers). The flux density data gathered during the experiments makes detection and reconstruction of the (1,1) and the (2,1) interface mode possible. The (1,1) mode was found to have a very strong amplitude of several mm. The (1,2) mode exists, but was rather instable. Additional experiments have been performed with a reduced amplitude of the (1,1)-mode. This was made possible by a modified electrolyte (Glycerol added). An improved sensor setup was prepared.

Ilmenau, Techn. Univ., Diplomarbeit, 2004

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Sievert, Carsten: Measurement of interface deformation and magnetic field distribution at a conducting two-fluid system. 2004.

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