基于PMDS/TiO2/润滑脂的接触分离式TENG自供电振动传感器

riboelectric nano-generator (TENG) is an emerging energy harvesting and sensing technology with broad application prospects in various vibration detection fields. This article first reviews the research background, working mechanism, common materials, and research progress of TENG in vibration detection; it then introduces common strategies to enhance TENG output performance, including doping dielectric layer with nanoparticles, surface treatment to increase friction contact area, and introducing electrical capture layers. On this basis, this paper proposes an independent contact separation TENG self-powered vibration sensor constructed with PDMS/TiO2/grease materials to further enhance its output; it systematically discusses its theoretical basis, structural design, and system integration (including TENG energy harvesting module, integrated power management chip, low-power wireless communication module, receiving terminal, and other key components), and designs its practical applications in fields such as automotive engine condition monitoring. This research provides theoretical basis and technical support for the optimization and engineering application of self-powered vibration sensors based on specific material systems and structural forms.