Piezoresistive Characteristics of Nanocarbon Composite Strain Sensor by Its Longitudinal Pattern Design
| Autor: | Jin-Seok Jang, Inpil Kang, Gwang-Won Oh, Junho Suh, Young-Seok Jung, Sung-Yong Kim, Baek-Gyu Choi, Kwan-Young Joung, Chan-Jung Kim |
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| Rok vydání: | 2021 |
| Předmět: |
Technology
Materials science strain sensor piezoresistive mechanism QH301-705.5 QC1-999 Acoustics Composite number 02 engineering and technology Carbon nanotube 010402 general chemistry 01 natural sciences law.invention law General Materials Science Sensitivity (control systems) carbon nanotube Biology (General) QD1-999 Instrumentation Fluid Flow and Transfer Processes Physics Process Chemistry and Technology General Engineering Engineering (General). Civil engineering (General) 021001 nanoscience & nanotechnology Piezoresistive effect 0104 chemical sciences Computer Science Applications Chemistry Gauge factor Macroscopic scale Content (measure theory) sensor pattern design TA1-2040 Deformation (engineering) 0210 nano-technology |
| Zdroj: | Applied Sciences, Vol 11, Iss 5760, p 5760 (2021) Applied Sciences Volume 11 Issue 13 |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11135760 |
| Popis: | For an engineering feasibility study, we studied a simple design to improve NCSS (nanocarbon composite strain sensor) sensitivity by using its geometric pattern at a macro scale. We fabricated bulk- and grid-type sensors with different filler content weights (wt.%) and different sensor lengths and investigated their sensitivity characteristics. We also proposed a unit gauge factor model of NCSS to find a correlation between sensor length and its sensitivity. NCSS sensitivity was improved proportional to its length incremental ratio and we were able to achieve better linear and consistent data from the grid type than the bulk type one. We conclude that the longer sensor length results in a larger change of resistance due to its piezoresistive unit summation and that sensor geometric pattern design is one of the important issues for axial load and deformation measurement. |
| Databáze: | OpenAIRE |
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