TITLE:
Dynamic Characteristics of Selemion CMV-Based IPMC Actuators in High Humidity Environment
AUTHORS:
H. Ngetha, M. Sasaki, H. Tamagawa, S. Ito, K. Ikeda
KEYWORDS:
IPMC, Selemion-CMV, Open Loop Systems, Electric circuit Model, Compensator, MATLAB
JOURNAL NAME:
Journal of Computer and Communications,
Vol.2 No.11,
September
12,
2014
ABSTRACT: Electrically-induced bending of Selemion
IPMC is caused by the charge induced into the IPMC. This induced charge quantity
is susceptible to the absolute humidity of environment. There are two types of
charges, the charge causing bending and the rest of charge that causes no
bending. In the high humidity environments, where absolute humidity is above 10
gm-3, the quantity of charge causing no bending accounts for the large part of
whole charge induced into the Selemion IPMC, while quantity of such charge is
negligibly small at the absolute humidity of less than 10 gm-3. Estimating the
quantity of those two types of charges individually, we successively analyzed
the bending stability of Selemion IPMC at the absolute humidity above 10 gm-3.
Consequently, we deduced the following conclusions. 1) There exists a large
time delay in the current in response to the voltage input, 2) Current is
highly dumping, and 3) Bending behavior is marginally stable under the input of
any frequency.