滑坡是一种非常严重的地质灾害，大多数滑坡与降雨直接相关，因此降雨量监测对于滑坡预报预测具有重要意义。基于摩擦纳米发电机技术，研制了一种用于滑坡监测的自发电雨量传感器。传感器包括传动单元和传感单元，通过降雨诱导纳米材料接触摩擦实现降雨测量和自发电的功能。实验结果表明：传感器在0~300 mL/24 h的量程范围内的测量误差为5%，线性度为3.4%，可在温度小于100 ℃及相对湿度小于90%的环境下正常工作，且当传感器外接负载阻值为7.8×10⁷Ω时可输出最大功率203.5 nW。传感器能够满足野外滑坡雨量监测的实际需要，可为相关雨量监测传感器的研制提供借鉴。

Landslides are significant geological hazard, with most events directly related to rainfall. Consequently, rainfall monitoring is critical for landslide forecasting and prediction. A self-powered rainfall sensor based on triboelectric nanogenerator (TENG) technology was developed for landslide monitoring. The sensor consists of a transmission unit and a sensing unit, which enable rainfall measurement and self-powering through rain-induced contact electrification of nanomaterials. Experimental results indicate that the sensor maintains a measurement error of 5% within the 0 ~ 300 mL/24 h range, with a linearity of 3.4%. It is capable of being operated in environments where the temperature is below 100 ℃ and the relative humidity is under 90%. Additionally, the output of the sensor can achieve a maximum power of 203.5 nW when an external load resistance of 7.8 × 10⁷ Ω is applied. The performance of the sensor can meet the practical requirements for field rainfall monitoring of landslides and also show potentials for the development of related rainfall monitoring technologies.