Mesoscale Shape Memory Alloy Actuator for Visual Clarity of Surgical Cameras in Minimally Invasive Robotic Surgery

2019 ◽  
Vol 1 (3) ◽  
pp. 135-144 ◽  
Author(s):  
Xiaolong Liu ◽  
Hui Liu ◽  
Jindong Tan
Keyword(s):  
Robotic Surgery ◽  
Shape Memory Alloy ◽  
Minimally Invasive ◽  
Shape Memory ◽  
Shape Memory Alloy Actuator ◽  
Minimally Invasive Robotic Surgery

scholarly journals Electromagnetic Control by Actuating Kirigami-Inspired Shape Memory Alloy: Thermally Reconfigurable Antenna application

Sensors ◽  
2021 ◽  
Vol 21 (9) ◽  
pp. 3026
Author(s):  
Minjae Lee ◽  
Sukwon Lee ◽  
Sungjoon Lim
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Fast Response ◽  
Electromagnetic Response ◽  
Reconfigurable Antenna ◽  
Thermal Stimulus ◽  
Shape Memory Alloy Actuator ◽  
Antenna Performance ◽  
Mechanical Transformation ◽  
Electromagnetic Control

Electromagnetic responses are generally controlled electrically or optically. However, although electrical and optical control allows fast response, they suffer from switching or tuning range limitations. This paper controls electromagnetic response by mechanical transformation. We introduce a novel kirigami-inspired structure for mechanical transformation with less strength, integrating a shape memory alloy actuator into the kirigami-inspired for mechanical transformation and hence electromagnetic control. The proposed approach was implemented for a reconfigurable antenna designed based on structural and electromagnetic analyses. The mechanical transformation was analyzed with thermal stimulus to predict the antenna geometry and electromagnetic analysis with different geometries predicted antenna performance. We numerically and experimentally verified that resonance response was thermally controlled using the kirigami-inspired antenna integrated with a shape memory alloy actuator.

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