3D-Printed Load Cell Using Nanocarbon Composite Strain Sensoropen access
- Authors
- Joung, Kwan-Young; Kim, Sung-Yong; Kang, Inpil; Cho, Sung-Ho
- Issue Date
- Jun-2021
- Publisher
- MDPI
- Keywords
- load cell; carbon nanotube; strain sensor; 3D printing; piezoresistivity
- Citation
- SENSORS, v.21, no.11, pp.1 - 12
- Indexed
- SCIE
SCOPUS
- Journal Title
- SENSORS
- Volume
- 21
- Number
- 11
- Start Page
- 1
- End Page
- 12
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/1076
- DOI
- 10.3390/s21113675
- ISSN
- 1424-8220
- Abstract
- The development of a 3D-Printed Load Cell (PLC) was studied using a nanocarbon composite strain sensor (NCSS) and a 3D printing process. The miniature load cell was fabricated using a low-cost LCD-based 3D printer with UV resin. The NCSS composed of 0.5 wt% MWCNT/epoxy was used to create the flexure of PLC. PLC performance was evaluated under a rated load range; its output was equal to the common value of 2 mV/V. The performance was also evaluated after a calibration in terms of non-linearity, repeatability, and hysteresis, with final results of 2.12%, 1.60%, and 4.42%, respectively. Creep and creep recovery were found to be 1.68 (%FS) and 4.16 (%FS). The relative inferiorities of PLC seem to originate from the inherent hyper-elastic characteristics of polymer sensors. The 3D PLC developed may be a promising solution for the OEM/design-in load cell market and may also result in the development of a novel 3D-printed sensor.
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