TY - GEN
T1 - Haircell-inspired micromechanical active amplifiers using variable stiffness springs
AU - Yun, Jung Heo
AU - Won, Chul Lee
AU - Kim, Taeyoon
AU - Cho, Young Ho
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2007
Y1 - 2007
N2 - We present a micromechanical active amplifier, inspired from the principle of the outer hair cells in cochlea, amplifying both displacement and force. The present micromechanical active amplifier modulates the resonant carrier motion using the variable stiffness spring whose stiffness changes proportionally to the input motion. We design, fabricate, and characterize two types of the amplifiers A and B, each having the variable stiffness spring for the maximum displacement gain and force gain, respectively. In the experimental study, the amplifier A shows the displacement gain of 5.62, which is 2.15 times larger than that of the amplifier B. The amplifier B shows the force gain of 10.0, resulting in 1.26 times larger value compared to that of the amplifier A. We experimentally verify that the haircell-inspired micromechanical amplifiers are capable to amplify both displacement and force.
AB - We present a micromechanical active amplifier, inspired from the principle of the outer hair cells in cochlea, amplifying both displacement and force. The present micromechanical active amplifier modulates the resonant carrier motion using the variable stiffness spring whose stiffness changes proportionally to the input motion. We design, fabricate, and characterize two types of the amplifiers A and B, each having the variable stiffness spring for the maximum displacement gain and force gain, respectively. In the experimental study, the amplifier A shows the displacement gain of 5.62, which is 2.15 times larger than that of the amplifier B. The amplifier B shows the force gain of 10.0, resulting in 1.26 times larger value compared to that of the amplifier A. We experimentally verify that the haircell-inspired micromechanical amplifiers are capable to amplify both displacement and force.
KW - Cochlea Haircell
KW - Mechanical resonance
KW - Micromechanical active amplifier
KW - Variable stiffness spring
UR - http://www.scopus.com/inward/record.url?scp=47349121252&partnerID=8YFLogxK
U2 - 10.1109/ICIA.2007.4295729
DO - 10.1109/ICIA.2007.4295729
M3 - Conference contribution
AN - SCOPUS:47349121252
SN - 1424412196
SN - 9781424412198
T3 - Proceedings of the 2007 International Conference on Information Acquisition, ICIA
SP - 216
EP - 220
BT - 2007 International Conference on Information Acquisition, ICIA
T2 - International Conference on Information Acquisition, ICIA 2007
Y2 - 9 July 2007 through 11 July 2007
ER -