Dual-Mode Broadband Triboelectric System

Self-Powered Live-Line Monitoring

Enables long-term self-sustained vibration monitoring on live 110 kV transmission lines without external power.

Han, Wu · Hao, Luo · Runfeng, Zhang · Wenkai, Dong · Haowen, Qian · Ge, Guowei · Ruijin, Liao · Cheng, Xian · Wang, Jiyu

Nano Energy 2026

Specifications

Frequency response range
{'zh': '5–88', 'en': '5–88'} Hz
Frequency measurement error
{'zh': '<0.5', 'en': '<0.5'} Hz
Amplitude linear response range
{'zh': '0.1–4', 'en': '0.1–4'} mm
Linearity
{'zh': '>0.991', 'en': '>0.991'}
Nonlinear error
{'zh': '<3.59', 'en': '<3.59'} %
Charging rate improvement
{'zh': '7.96', 'en': '7.96'}
Field test voltage level
{'zh': '110', 'en': '110'} kV

Advantages

Broadband frequency sensing

ID mode covers 5–88 Hz with error <0.5 Hz, matching typical aeolian vibration frequencies.

Linear amplitude sensing

CD mode gives linear amplitude response from 0.1 to 4 mm with R²>0.991 and nonlinear error δ<3.59%.

Charging rate boosted 7.96x

A custom low-loss power management module boosts charging rate by 7.96 times, enabling Bluetooth and infrared communication for wireless data transmission.

Validated on live 110 kV line

Deployed on a live 110 kV transmission line, the system demonstrated stable, continuous operation under varying environmental conditions.

Applications