Highly stretchable miniature strain sensor for large dynamic strain measurement
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Univ. of North Texas, Denton, TX (United States)
In this paper, a new type of highly stretchable strain sensor was developed to measure large strains. The sensor was based on the piezo-resistive response of carbon nanotube (CNT)/polydimethylsiloxane (PDMS) composite thin films. The piezo-resistive response of CNT composite gives accurate strain measurement with high frequency response, while the ultra-soft PDMS matrix provides high flexibility and ductility for large strain measurement. Experimental results show that the CNT/PDMS sensor measures large strains (up to 8 %) with an excellent linearity and a fast frequency response. The new miniature strain sensor also exhibits much higher sensitivities than the conventional foil strain gages, as its gauge factor is 500 times of that of the conventional foil strain gages.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1246886
- Report Number(s):
- SAND-2016-0098J; 617598
- Journal Information:
- Proceedings of the Society for Experimental Mechanics Series, Journal Name: Proceedings of the Society for Experimental Mechanics Series; ISSN 2191-5644
- Country of Publication:
- United States
- Language:
- English
Web of Science
Similar Records
Self-Sensing, Stretchable, Active Circuit Arrays: Liquid Metal Paste as a Combination Interconnect and Strain Sensor
Direct ink write multi-material printing of PDMS-BTO composites with MWCNT electrodes for flexible force sensors