The Proceedings of the Conference on Information, Intelligence and Precision Equipment : IIP

Online ISSN : 2424-3140

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IIP2020 情報・知能・精密機器部門講演会

Displaying 51-52 of 52 articles from this issue

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The Micro-meter-sized Asperities manufactured by AC Electric Field for Vinyl Chloride Solvent

Takayuki TOKOROYAMA, Yusei YAMADA, Noritsugu UMEHARA, Motoyuki MURASHI ...

Pages 2C07-
Published: 2020
Released on J-STAGE: January 22, 2021

DOIhttps://doi.org/10.1299/jsmeiip.2020.2C07

CONFERENCE PROCEEDINGS RESTRICTED ACCESS

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In this study, in order to create inexpensive micrometer-sized texturing, a polyvinyl chloride solvent dissolved in acetone was prepared. The solvent droplet was dropped on a silicon substrate, and placed between parallel plate electrodes. The effects of concentration, DC/AC and their combination voltage on micrometer-sized plastic texturing were clarified. As a result, it was clarified that the micrometer-sized plastic texture could be dispersed most on the surface by applying AC 11 Hz in the early stage of the solvent evaporation, and that the protrusion height increased with the concentration and DC voltage.

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Viscosity measurement of lubricant at uniform small gaps by combining microfluidic device and fluorescence correlation spectroscopy

Takayuki KIMOTO, Kenji FUKUZAWA, Shintrao ITOH, Naoki AZUMA, Hedong ZH ...

Pages 2C08-
Published: 2020
Released on J-STAGE: January 22, 2021

DOIhttps://doi.org/10.1299/jsmeiip.2020.2C08

CONFERENCE PROCEEDINGS RESTRICTED ACCESS

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Measurement of the viscosity of the lubricant in the minute gap is important for elucidating the boundary and mixed lubrication characteristics. It has become clear that the lubricant has a specific viscosity depending on the small gap. Since the viscosity depends on the gap, measurement at a constant (uniform) gap in the measurement region was essential, but it was difficult with a gap of the order of 10 nm. In this study, we propose a method for measuring the viscosity of lubricant in a uniform small gap by combining microfluidic device and fluorescence correlation spectroscopy.

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