Flexible sensors

characterized by their flexibility

high sensitivity

and multi-modal sensing capabilities

provide innovative solutions for industrial safety monitoring and intelligent manufacturing.A comprehensive review of their material design

fabrication techniques

and application scenarios in critical domains such as aerospace and energy is presented.Particular emphasis is placed on technological breakthroughs and achievements in areas including full-coverage hazardous gas monitoring

structural fatigue detection

and human-machine interaction.Through the integration of artificial intelligence and the Industrial Internet of Things

flexible sensors transition from sensing to predictive maintenance

thereby enhancing system safety and intelligence levels.Nevertheless

challenges remain

including material stability

lack of standards

and cost constraints.Looking ahead

the integration of self-healing materials with neuromorphic computing holds the potential to advance flexible sensors toward an environmentally adaptive intelligent perception system

thereby promoting the upgrading of industrial systems toward higher reliability

lower energy consumption

and greater intelligence.