All-in-One Sensing System for Online Vibration Monitoring via IR Wireless Communication as Driven by High-Power TENG

摘要

Abnormal vibration is a direct response to the mechanical defects ofelectrical equipment, and requires reliable vibration sensing for healthcondition evaluation in the associated system. The triboelectric nanogenerator(TENG) triggered by random vibration to generate electrical energy/signal while giving feedback on the vibration state, paving a promising waytowards self-powered sensors. Here, an all-in-one sensing system configuredwith a vibration sensor demonstrates instantaneous discharge boostedTENG and IR wireless communication for vibration state online monitoring.The sandwich-structured TENG combined with mechanical switches canrelease the co-accumulated charges from dual triboelectric layers to yieldgiant instantaneous output power of 616 W, which is 106 times higher thanthat of the continuous discharge. Moreover, an IR LED as a transmitterdriven by the TENG can form an all-in-one vibration sensor enablingwireless communication, where the sensor can be further integrated withrepeaters and phones to establish a wireless vibration online monitoringsystem for vibration state visualization. This work presents a novel ideato implement high-power TENG with IR communication integration for insitu vibration online monitoring. Such a strategy is potentially available fordistributed sensor construction towards abnormal signal monitoring thatreflects the operating state of equipment.