China Highway Engineering Consulting Group Company Ltd., Beijing 100089, China.
Research and Development Center on Highway Pavement Maintenance Technology, China Communications Construction Company Limited, Beijing 100089, China.
Sensors (Basel). 2021 Dec 13;21(24):8319. doi: 10.3390/s21248319.
Traditional bridge monitoring has found it difficult to meet the current diversified needs, and frequent replacement of sensor batteries is neither economical nor environmentally friendly. This paper presents a wireless acceleration sensor with low power consumption and high sensitivity through integrated circuit design, data acquisition and wireless communication design, package design, etc. The accuracy of the sensor in data collection was verified through calibration and performance comparison tests. The ability of triangular piezoelectric cantilever beam (PCB) was tested through design and physical manufacture. Finally, the self-powered performance of the sensor was tested by connecting the sensor and the triangular PCB through a circuit, which verifies the feasibility of using the PCB to collect bridge vibration energy and convert it into electrical energy to supply power for sensor, and also explore the green energy collection and application.
传统的桥梁监测难以满足当前多样化的需求，频繁更换传感器电池既不经济也不环保。本文通过集成电路设计、数据采集和无线通信设计、封装设计等，提出了一种低功耗、高灵敏度的无线加速度传感器。通过校准和性能比较测试验证了传感器在数据采集方面的准确性。通过设计和物理制造测试了三角形压电悬臂梁（PCB）的能力。最后，通过将传感器和三角形 PCB 连接到一个电路来测试传感器的自供电性能，验证了使用 PCB 收集桥梁振动能量并将其转换为电能为传感器供电的可行性，同时也探索了绿色能源的收集和应用。
