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Proceedings Paper

Modeling of retardance in ferrofluid with Taguchi-based multiple regression analysis
Author(s): Jing-Fung Lin; Jyh-Shyang Wu; Jer-Jia Sheu
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Paper Abstract

The citric acid (CA) coated Fe3O4 ferrofluids are prepared by a co-precipitation method and the magneto-optical retardance property is measured by a Stokes polarimeter. Optimization and multiple regression of retardance in ferrofluids are executed by combining Taguchi method and Excel. From the nine tests for four parameters, including pH of suspension, molar ratio of CA to Fe3O4, volume of CA, and coating temperature, influence sequence and excellent program are found. Multiple regression analysis and F-test on the significance of regression equation are performed. It is found that the model F value is much larger than Fcritical and significance level P <0.0001. So it can be concluded that the regression model has statistically significant predictive ability. Substituting excellent program into equation, retardance is obtained as 32.703°, higher than the highest value in tests by 11.4%.

Paper Details

Date Published: 4 March 2015
PDF: 6 pages
Proc. SPIE 9302, International Conference on Experimental Mechanics 2014, 930229 (4 March 2015); doi: 10.1117/12.2076687
Show Author Affiliations
Jing-Fung Lin, Far East Univ. (Taiwan)
Jyh-Shyang Wu, Far East Univ. (Taiwan)
Jer-Jia Sheu, Southern Taiwan Univ. of Science and Technology (Taiwan)

Published in SPIE Proceedings Vol. 9302:
International Conference on Experimental Mechanics 2014
Chenggen Quan; Kemao Qian; Anand Asundi; Fook Siong Chau, Editor(s)

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