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Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets
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Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets

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A highly elastic, capacitive strain gauge based on percolating nanotube networks

Daniel J Cohen1, Debkishore Mitra, Kevin Peterson

  • 1Department of Bioengineering, University of California, Berkeley, California 94720, USA. daniel.cohen@berkeley.edu

Nano Letters
|March 14, 2012
PubMed

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Strain quantifies the deformation of a material under force, typically measured as normal strain, which represents the change in length when compared with the original length. Electrical strain gauges are used for enhanced accuracy. These devices consist of a conductive wire mounted on a paper backing that adheres to the material's surface. These gauges operate on the piezoresistive effect, where the wire's electrical resistance changes in response to mechanical deformation. The strain gauge...
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The utilization of strain gauges as transducers for converting mechanical strain into electrical signals is a common practice in various engineering applications. These strain gauges are frequently integrated into Wheatstone bridge circuits to accurately measure parameters such as force or pressure. Within this context, each element within the circuit exhibits a resistance that undergoes subtle variations when subjected to mechanical strain. The primary objective is to convert minuscule...