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Development of a Spoke Type Torque Sensor Using Painting Carbon Nanotube Strain Sensors
- Authors
- Kim, Sung Yong; Park, Se Hoon; Choi, Baek Gyu; Kang, In Hyuk; Park, Sang Wook; Shin, Jeong Woo; Kim, Jin Ho; Baek, Woon Kyung; Lim, Kwon Taek; Kim, Young-Ju; Song, Jae-Bok; Kang, Inpil
- Issue Date
- 3월-2018
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Torque Sensor; Carbon Nanotube; Strain Sensor; Piezoresistivity; Smart Paint
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.18, no.3, pp 1782 - 1786
- Pages
- 5
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 18
- Number
- 3
- Start Page
- 1782
- End Page
- 1786
- ISSN
- 1533-4880
1533-4899
- Abstract
- This study reports a hub-spoke type joint torque sensor involving strain gauges made of multi-walled carbon nanotubes (MWCNT). We developed the novel joint torque sensor for robots by means of MWCNT/epoxy strain sensors (0.8 wt%, gauge factor 2) to overcome the limits of conventional foil strain gauges. Solution mixing process was hired to fabricate a liquid strain sensor that can easily be installed on any complicated surfaces. We painted the MWCNT/epoxy mixing liquid on the hub-spoke type joint torque sensor to form the piezoresistive strain gauges. The painted sensor converted its strain into torque by mean of the installed hub-spoke structure after signal processing. We acquired sufficient torque voltage responses from the painted MWCNT/epoxy strain sensor.
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