TY - GEN
T1 - Ring-shape SMA micro actuator with parylene retention spring for low power consumption, large displacement linear actuation
AU - Moura, T. D.O.
AU - Tsukamoto, T.
AU - De Lima Monteiro, D. W.
AU - Tanaka, S.
N1 - Publisher Copyright:
© 2015 IEEE.
Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 2015/8/5
Y1 - 2015/8/5
N2 - This paper reports a novel ring-shape micro actuator for a latching mechanism used in a low power consumption and large displacement micro linear actuation. The proposed actuator consists of a shape memory alloy (SMA) ring, parylene spring and shoes. The parylene spring was carefully designed for independent control of radial and axial stiffness, which can be realized by a high aspect ratio cross section and a meander structure. The maximum force generated by the parylene spring was about 40 mN. Two types of SMA actuator was examined for the actuation: simple wire and micro spring types. The maximum displacement as high as 300 μm was obtained by using the SMA micro spring.
AB - This paper reports a novel ring-shape micro actuator for a latching mechanism used in a low power consumption and large displacement micro linear actuation. The proposed actuator consists of a shape memory alloy (SMA) ring, parylene spring and shoes. The parylene spring was carefully designed for independent control of radial and axial stiffness, which can be realized by a high aspect ratio cross section and a meander structure. The maximum force generated by the parylene spring was about 40 mN. Two types of SMA actuator was examined for the actuation: simple wire and micro spring types. The maximum displacement as high as 300 μm was obtained by using the SMA micro spring.
KW - Micro Linear Actuator
KW - Parylene spring
KW - Shape Memory Alloy (SMA)
KW - Variable focus lens system
UR - http://www.scopus.com/inward/record.url?scp=84955495361&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84955495361&partnerID=8YFLogxK
U2 - 10.1109/TRANSDUCERS.2015.7181384
DO - 10.1109/TRANSDUCERS.2015.7181384
M3 - Conference contribution
AN - SCOPUS:84955495361
T3 - 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
SP - 2148
EP - 2151
BT - 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
Y2 - 21 June 2015 through 25 June 2015
ER -