Measurement method of rotational viscosity with transient current.

Abstract

A measurement method of the rotational viscosity (γ₁) with an analysis of the transient current of LC cell is very useful because of its simplicity comparing the rotating magnetic method. It has been already reported, but the elastic constants of LC are ignored in it. We propose new analysis expression which included them. It has been found that the γ₁ can be gotten easily and less error than the formermethod.