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  Home > JCE Print > Journal of Chemical Education > Issues > 2004  > November  >
In the Laboratory
Cost-Effective Teacher
Measuring Viscoelastic Deformation with an Optical Mouse
T. W. Ng
Faculty of Engineering Engineering Block EA-07-32, National University of Signapore, Singapore 117576
Cover
November 2004
Vol. 81 No. 11
p. 1628
Abstract
A simple demonstration of viscoelasticity can be carried out by attaching a weight to a polymer film and watching it extend over time. For accurate and quantifiable data on the deformation, an electronic displacement sensor should be incorporated. Most of such sensors are expensive. Here, an optical mouse was demonstrated to provide accurate data at low cost. The experiment was also devised in a manner to allow students to learn about viscoelastic deformation experientially.
More Information
*  Citation
 Ng, T. W. J. Chem. Educ. 2004 81 1628.
*  Keywords
 Consumer Chemistry; Demonstrations; General Chemistry; Laboratory Equipment / Apparatus; Laboratory Instruction; Materials Science; Plastics; Polymer Chemistry
*  History
 Created:
Last Updated:		 September 27, 2004
October 4, 2004
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