Abstract
The apparatus measuring apparent density was home-made by the studio; the apparatus, the measuring method and the working principle is introduced in this paper. The distribution of nano-magnetic particles in magnetic lubricating oil was measured by the homemade apparatus preliminarily, and the experimental results can lay a foundation for the research of tribological Performances in magnetic lubricating oil. Applied in the physical experimental teaching field, the apparatus enlarges the students field of visions and enables their creativity developed efficiently.
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