Vibration sensors greatly benefit medical and healthcare monitoring, environmental monitoring, and structural health monitoring. However, most of them are shadowed by relatively low-frequency vibration response, the narrow operating frequency range, and operational complexity, which hinders their use in wide practical applications. Here, we report a self-powered broadband vibration sensor with a layer-powder-layer structure based on a triboelectric nanogenerator. The internal polytetrafluoroethylene (PTFE) and silver (Ag) micro powder can vibrate under the external vibration stimuli, offering distinct advantages for high-frequency vibration sensing. The high-frequency triboelectric vibration sensor exhibits a significantly broad frequency response range of 3–133 kHz. The highest response frequency is approximately 1–3 orders of magnitude higher than most previously reported triboelectric vibration sensors. Additionally, the HVS shows directional independence, a good frequency resolution of 0.01 kHz, and small hysteresis. With these capabilities, the HVS was demonstrated in burst vibration detection, rail track fracture detection, automobile engine monitoring, and geological exploration applications. The facile and effective vibration monitoring system based on the HVS can provide a platform for various vibration monitoring applications. The self-powered high-frequency vibration sensor is a promising candidate for next-generation vibration sensors.

振动传感器极大地有益于医疗和保健监测、环境监测和结构健康监测。然而，它们中的大多数都受到相对低频振动响应、窄工作频率范围和操作复杂性的影响，阻碍了它们在广泛的实际应用中的应用。在这里，我们报告了一种基于摩擦纳米发电机的层-粉-层结构的自供电宽带振动传感器。内部聚四氟乙烯（PTFE）和银（Ag）微粉可在外部振动刺激下振动，为高频振动传感提供了明显的优势。高频摩擦电振动传感器具有 3–133 kHz 的宽广频率响应范围。最高响应频率比大多数先前报道的摩擦电振动传感器高约 1-3 个数量级。此外，HVS 显示出方向独立性、0.01 kHz 的良好频率分辨率和小滞后。凭借这些功能，HVS 已在突发振动检测、铁路轨道断裂检测、汽车发动机监测和地质勘探应用中得到验证。基于HVS的简便有效的振动监测系统可以为各种振动监测应用提供平台。自供电高频振动传感器是下一代振动传感器的有希望的候选者。和小滞后。凭借这些功能，HVS 已在突发振动检测、铁路轨道断裂检测、汽车发动机监测和地质勘探应用中得到验证。基于HVS的简便有效的振动监测系统可以为各种振动监测应用提供平台。自供电高频振动传感器是下一代振动传感器的有希望的候选者。和小滞后。凭借这些功能，HVS 已在突发振动检测、铁路轨道断裂检测、汽车发动机监测和地质勘探应用中得到验证。基于HVS的简便有效的振动监测系统可以为各种振动监测应用提供平台。自供电高频振动传感器是下一代振动传感器的有希望的候选者。