A flexible resistive strain gauge with reduced temperature effect via thermal expansion anisotropic composite substrate.

ABSTRACT: Strain gauge plays vital roles in various fields as structural health monitoring, aerospace engineering, and civil infrastructure. However, traditional flexible strain gauge inevitably brings the pseudo-signal caused by the substrate temperature effect and determines its accuracy. Here, we present an anisotropic composite substrate designed to modify the thermal expansion performance via Micro-electro-mechanical System (MEMS) technology, which facilitates the development of strain gauges that are minimally affected by substrate temperature-induced effect. Compared to the isotropic flexible substrate, the simulated expansion displacement in the thermal insensitive direction is reduced by 53.6% via introducing an anisotropic thermal expansion structure. The developed strain gauge exhibits si

SUBMITTER: Li M 

PROVIDER: S-EPMC11411135 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature