钻井过程中实时测量钻具振动对于钻井工艺及井下安全至关重要，然而传统的井下振动传感器供电方式增加了钻井成本并降低了钻井效率，而具有自发电功能的传感器无疑将更加适宜实际工况。基于摩擦纳米发电机原理，提出了一种井下阵列式可变形自供电振动传感器。试验表明该传感器可同步测量振幅和频率，其中振动频率的测量范围为0 ~ 11 Hz，测量误差小于± 4%；可实现3个离散振幅值（10、25、40 mm）的测量，测量误差为± 3 mm，且传感器的工作温度范围为0 ~ 85 ℃。此外传感器还具有发电功能，试验表明传感器的最大输出功率可达8.3 × 10 ^-7 W，而将多个传感器并联使用后其发电功率将大幅度提升。研究成果可为井下传感器及井下发电机的研制提供新的思路。

The drilling process requires real-time measurement of drill string vibration, which is crucial for drilling and downhole safety. However, the traditional power supply mode used for downhole vibration sensors has been found to increase drilling costs and reduce drilling efficiency. Therefore, sensors with self-powered capabilities are considered more suitable for practical conditions. A downhole arrayed self-powered deformable vibration sensor was proposed based on the principle of triboelectric nanogenerators. Experimental results demonstrate that the sensor synchronized measurements of amplitude and frequency. The vibration frequency is measured within a range of 0 Hz to 11 Hz, with a measurement error of less than ± 4%. Additionally, the sensor is able to measure three discrete amplitude values (10, 25, 40 mm) with a measurement error of ± 3 mm. The sensor can working normally within a temperature range of 0 ℃ to 85 ℃. Furthermore, the sensor has power generation capabilities, with experiments revealing a maximum output power of 8.3 × 10 ^-7 W. Notably, when multiple sensors are used in parallel, the power generation capacity is significantly enhanced. These research findings provide new insights for the development of downhole sensors and downhole generators.