Microfluid as a mean for piezoresistive strain measurement-A mixture of glycerin with salt water

Yin Nee Cheung, Ching Hsiang Cheng, Chen Chao, King Lun Kwok, Mo Yang, Chun Lap Samuel Lo, Woon Fong Leung

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

A mixture of glycerin with salt water is proposed as a mean for piezoresistive strain measurement. Electrochemical impedance spectroscopy (EIS) is conducted for the investigation of the electrical conductive behavior of the mixture confined within a definite volume. The role of glycerin is to increase the viscosity of the mixture, to reduce water loss due to evaporation and to lower the rate of corrosion on the electrode. The applied strain has caused an increase in both the resistance to charge transfer (Ret) and the resistance of the salt solution which is reflected in an increase in the resistance of the system (Rsys). A linear relationship between Z re and ε in the strain range up to about 30 % is verified. The use of ionic liquids for green chemistry has been suggested for years and its use as an electrical conductive media in strain gauge technology is found to be environmentally friendly.
Original languageEnglish
Title of host publication3rd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2008
Pages480-484
Number of pages5
DOIs
Publication statusPublished - 1 Sep 2008
Event3rd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2008 - Sanya, China
Duration: 6 Jan 20089 Jan 2008

Conference

Conference3rd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2008
Country/TerritoryChina
CitySanya
Period6/01/089/01/08

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this