For modern alarm detection technologies, the vibration sensor is one of the most widely applied sensing technologies. It is of great significance for developing the sensing field to achieve the broadband monitoring of mechanical vibration by using triboelectric sensors (TES). In this work, a novel double-spring-piece structured triboelectric sensor (DS-TES) is proposed for broadband vibration monitoring and warning. The sensor adopts double three-rib longitudinal spring pieces to form an internal spring-mass-damping system, which has high stability. The physical model of the electric field system is established and analyzed by combining the dynamic model. The experimental results show that the DS-TES can achieve vibration frequency measurement in the range of 0–200 Hz with high linearity, and the error rate is less than 0.015%. The signal-to-noise ratio (SNR) of most output signals can be maintained at approximately 40 dB after signal processing. Moreover, the SNR of DS-TES can be maintained above 18 dB within the range of 70° tilt angle. Finally, the applications of DS-TES in broadband vibration real-time monitoring and grading warning are demonstrated. The present results indicate that the DS-TES holds promising potentials in acting as a warning of natural disasters or structural health monitoring systems.

对于现代报警检测技术，振动传感器是应用最广泛的传感技术之一。利用摩擦电传感器（TES）实现机械振动的宽带监测对于发展传感领域具有重要意义。在这项工作中，提出了一种新型双弹簧片结构摩擦电传感器（DS-TES），用于宽带振动监测和预警。传感器采用双三肋纵向弹簧片组成内部弹簧-质量-阻尼系统，稳定性高。结合动力学模型建立并分析了电场系统的物理模型。实验结果表明，DS-TES可以在0-200Hz范围内实现高线性度的振动频率测量，误差率小于0.015%。大多数输出​​信号的信噪比 (SNR) 在信号处理后可以保持在大约 40 dB。此外，DS-TES 的 SNR 在 70°倾斜角范围内可以保持在 18 dB 以上。最后，论证了DS-TES在宽带振动实时监测分级预警中的应用。目前的结果表明，DS-TES 在作为自然灾害预警或结构健康监测系统方面具有巨大的潜力。