Title :
Effects of ultrasonic wave propagating in liquid crystals on substrate
Author :
Moritake, H. ; Ozaki, R. ; Yoshino, K.
Author_Institution :
Dept. of Electr. & Electron. Eng., Nat. Defense Acad., Yokosuka
fDate :
June 30 2008-July 3 2008
Abstract :
The acoustic phase change of a shear horizontal (SH) wave propagating into a nematic liquid crystal cell structure is measured under application of electric field. The numerical analyses are also performed by considering director distribution and viscosity distribution in the nematic liquid layer. The effective viscosity was calculated from the viscosity distribution profiles and the particle velocity of the SH wave in the liquid crystal layer. The liquid crystal viscosity calculated from the measured acoustic phase change under application of electric field is excellent agreement with the calculated effective viscosity.
Keywords :
elastic waves; nematic liquid crystals; ultrasonic propagation; viscosity measurement; director angle distribution profiles; electric field; liquid crystal viscosity calculation; liquid crystal-on-substrate; measured acoustic phase change; nematic liquid crystal director orientation; shear horizontal wave propagation; ultrasonic wave propagating effects; viscosity distribution profiles; Acoustic applications; Acoustic measurements; Acoustic propagation; Acoustic waves; Electric variables measurement; Liquid crystals; Numerical analysis; Phase measurement; Ultrasonic variables measurement; Viscosity;
Conference_Titel :
Dielectric Liquids, 2008. ICDL 2008. IEEE International Conference on
Conference_Location :
Futuroscope-Chasseneuil
Print_ISBN :
978-1-4244-1585-4
Electronic_ISBN :
978-1-4244-1586-1
DOI :
10.1109/ICDL.2008.4622457
