Polymer-based strain sensors: review

Strain sensors, as electronic components, convert non-quantitative strain states into visually perceivable electrical signal variations using strain gauges. They have extensive applications in various fields such as materials science, medical diagnostics, structural mechanics, and environmental monitoring, making them crucial measurement tools. However, traditional strain sensors suffer from drawbacks such as low sensitivity, slow response speed, and susceptibility to interference, which impact their use in high-precision fields. This article systematically summarizes the research progress and preparation methods of polymer-based strain sensors in recent years, analyzes the challenges faced by strain sensors in their development process, and prospects future research directions to provide theoretical basis and foundation for the preparation of new strain sensors.