Pipette Based Viscometer with Pressure Sensor Element

Sinwoo Cho, Thanh Vinh Nguyen, Norihisa Miki, Hidetoshi Takahashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper reports a simple viscometer, whose principle utilizes the relationship between liquid viscosity and the suction speed in a tube. The proposed viscometer is composed of an air chamber and a glass tube. A steel ball is attached to the silicone membrane of the chamber and an electromagnetic magnet is used to provide the volume change. A MEMS pressure sensor element is attached to the chamber to measure its pressure change. When a step-response volume change is applied, the chamber pressure decreases so that the liquid sticking to the tube gradually ascends at a speed depending to the viscosity. Thus, the viscosity can be calculated by measuring the gradient of the pressure change. The proposed method can be applied to micropipettes so that viscosity is easily measured with a simple device.

Original languageEnglish
Title of host publication33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages646-648
Number of pages3
ISBN (Electronic)9781728135809
DOIs
Publication statusPublished - 2020 Jan
Event33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020 - Vancouver, Canada
Duration: 2020 Jan 182020 Jan 22

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
Volume2020-January
ISSN (Print)1084-6999

Conference

Conference33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020
CountryCanada
CityVancouver
Period20/1/1820/1/22

Keywords

  • Pipette
  • Pressure sensor
  • Viscometer

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Cho, S., Nguyen, T. V., Miki, N., & Takahashi, H. (2020). Pipette Based Viscometer with Pressure Sensor Element. In 33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020 (pp. 646-648). [9056273] (Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS); Vol. 2020-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MEMS46641.2020.9056273