As part of my master's thesis, I built a surface rheometer based on an oscillating magnetic needle, developed a program to control the measurements and process the obtained data. In the thesis I present the theoretical background of the problem, the construction of the rheometer, the measurement process and the method of data processing. With the rheometer I measured the surface of pure water, an aqueous solution of tetradecanoic acid and an aqueous protein solution with the addition of a surfactant. Finally, I comment on the experimental setup and suggest possible improvements.
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