Three-axis scanning force sensor with liquid metal electrodes

2017 ◽  
Vol 264 ◽  
pp. 260-267 ◽  
Author(s):  
Takuro Nakadegawa ◽  
Hiroki Ishizuka ◽  
Norihisa Miki
2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Kyuyoung Kim ◽  
Junseong Ahn ◽  
Yongrok Jeong ◽  
Jungrak Choi ◽  
Osman Gul ◽  
...  

AbstractElectronic skin (E-skin) capable of detecting various physical stimuli is required for monitoring external environments accurately. Here, we report an all-soft multiaxial force sensor based on liquid metal microchannel array for electronic skin applications. The proposed sensor is composed of stretchable elastomer and Galinstan, a eutectic gallium-indium alloy, providing a high mechanical flexibility and electro-mechanical durability. Liquid metal microchannel arrays are fabricated in multilayer and positioned along a dome structure to detect multi-directional forces, supported by numerical simulation results. By adjusting the height of the dome, we could control the response of the multiaxial sensor with respect to the deflection. As a demonstration of multiaxial force sensing, we were able to monitor the direction of multidirectional forces using a finger by the response of liquid metal microchannel arrays. This research could be applied to various fields including soft robotics, wearable devices, and smart prosthetics for artificial intelligent skin applications.


2016 ◽  
Vol 6 (14) ◽  
pp. 1600483 ◽  
Author(s):  
Haomiao Li ◽  
Huayi Yin ◽  
Kangli Wang ◽  
Shijie Cheng ◽  
Kai Jiang ◽  
...  

ACS Nano ◽  
2020 ◽  
Vol 14 (5) ◽  
pp. 5659-5667
Author(s):  
Min-gu Kim ◽  
Byeongyong Lee ◽  
Mochen Li ◽  
Suguru Noda ◽  
Choongsoon Kim ◽  
...  

Micromachines ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 769 ◽  
Author(s):  
Wang ◽  
Zhang ◽  
Gao ◽  
Wang ◽  
Deng ◽  
...  

This paper proposes a novel microdroplet generator based on the dielectrophoretic (DEP) force. Unlike the conventional continuous microfluidic droplet generator, this droplet generator is more like “invisible electric scissors”. It can cut the droplet off from the fluid matrix and modify droplets’ length precisely by controlling the electrodes’ length and position. These electrodes are made of liquid metal by injection. By applying a certain voltage on the liquid-metal electrodes, the electrodes generate an uneven electric field inside the main microfluidic channel. Then, the uneven electric field generates DEP force inside the fluid. The DEP force shears off part from the main matrix, in order to generate droplets. To reveal the mechanism, numerical simulations were performed to analyze the DEP force. A detailed experimental parametric study was also performed. Unlike the traditional droplet generators, the main separating force of this work is DEP force only, which can produce one droplet at a time in a more precise way.


2019 ◽  
Vol 13 (3) ◽  
pp. 217-225 ◽  
Author(s):  
Yongchang Zheng ◽  
Kai Kang ◽  
Fucun Xie ◽  
Hanyu Li ◽  
Meng Gao

Author(s):  
Hirokazu Konishi ◽  
Hideki Ono ◽  
Eiichi Takeuchi ◽  
Toshiyuki Nohira ◽  
Tetsuo Oishi

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