Dimensional Analysis of Grid Pattern on a Nematic Liquid Crystal

Dwiria Wahyuni; Intan R. Kusumawardany; Sri Hartini; Yusril Yusuf

doi:10.4028/www.scientific.net/AMR.896.493

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 896Dimensional Analysis of Grid Pattern on a Nematic...

Dimensional Analysis of Grid Pattern on a Nematic Liquid Crystal

Abstract:

Grid pattern (GP) was observed on planarly aligned nematic liquid crystal 4-methoxy-benziledene-4-n-buthyl-aniline (MBBA) when it applied by certain frequency and certain voltage which exceeds a threshold voltage, V_GP. The GP appeared due to convective movement of MBBA molecules. Dimensions on GP were distinguished into length and width of GP rectangular shape. Width-area of GP is product of the length and the width. Dimensional analysis carried on image processing used ImageJ software. Observation on the pattern showed that the frequency affected GP dimensions, which were proportional to the GP length and inversely proportional to the GP width. Variation on frequency also showed that the frequency was inversely proportional to GP width-area that formed on image, but was proportional to sample thickness.

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Periodical:

Advanced Materials Research (Volume 896)

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493-496

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.896.493

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Online since:

February 2014

Authors:

Dwiria Wahyuni, Intan R. Kusumawardany, Sri Hartini, Yusril Yusuf*

Keywords:

Dimensional Analysis, Grid Pattern, Image Processing, Nematic Liquid Crystal

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