| MEMS型加速度传感器在超高层建筑振动监测中的性能对比测试 |
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| 引用本文： | 胡荣攀,汪羽凡,王立新,林健富,刘军香,赵贤任.MEMS型加速度传感器在超高层建筑振动监测中的性能对比测试[J].震灾防御技术,2022,17(2):348-359. |
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| 作者姓名： | 胡荣攀 汪羽凡 王立新 林健富 刘军香 赵贤任 |
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| 作者单位： | 深圳防灾减灾技术研究院, 广东深圳 518000 |
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| 基金项目： | 广东省防震减灾科技协同创新中心项目（2018B020207011）；国家重点研发计划项目（2019YFC1511005-5，2019YFB2102704）；中国地震局地震科技星火计划攻关项目（XH204702） |
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| 摘 要： | 为开展MEMS型加速度传感器在超高层建筑振动监测应用中的性能对比测试，选取4种不同类型MEMS型加速度传感器与G1B型力平衡式加速度传感器，将其安装在地王大厦相同测点，对MEMS型、G1B型加速度传感器记录的结构环境振动数据进行时程、频谱和模态频率对比分析，并对其记录的结构地震响应进行时域及频域对比。研究结果表明，不同类型MEMS型加速度传感器仪器噪声均大于G1B型加速度传感器，其中MEMS-I型加速度传感器噪声水平相对较小，与G1B型加速度传感器模态频率识别结果及地震响应监测数据吻合较好，验证了MEMS-I型加速度传感器可较准确地记录到结构强振动响应，适用于超高层建筑日常结构振动监测。
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| 关 键 词： | 超高层建筑 MEMS型加速度传感器 结构振动 模态频率 性能测试 |
| 收稿时间： | 2022-03-26 |
Performance Test and Comparison of MEMS Accelerometers for Vibration Monitoring of High-Rise Building |
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| Hu Rongpan,Wang Yufan,Wang Lixin,Lin Jianfu,Liu Junxiang,Zhao Xianren.Performance Test and Comparison of MEMS Accelerometers for Vibration Monitoring of High-Rise Building[J].Technology for Earthquake Disaster Prevention,2022,17(2):348-359. |
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| Authors: | Hu Rongpan Wang Yufan Wang Lixin Lin Jianfu Liu Junxiang Zhao Xianren |
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| Institution: | Shenzhen Academy of Disaster Prevention and Reduction, Shenzhen 518000, Guangdong, China |
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| Abstract: | Field test was carried out in this study to evaluate and compare the performance of MEMS accelerometers for the vibration monitoring of high-rise buildings. Four MEMS accelerometers of different types and a G1B-type force-balanced accelerometer were selected and installed on the same location in Diwang Building for testing. The ambient vibration of the building recorded by the MEMS accelerometers was compared with the G1B accelerometer in terms of time history, Fourier spectrum and modal frequency identification. In addition, the earthquake-induced structural responses of the high-rise building recorded by MEMS-I type accelerometer was compared with those recorded by the G1B accelerometer in both time and frequency domain. The test results show that the noise levels of the four MEMS accelerometers are all higher than that of the G1B accelerometer. Among them, the MEMS-I type accelerometer has a relatively lower level of sensor noise and achieves a good match with the G1B accelerometer in terms of modal frequency identification and earthquake-induced structural vibration measurement, which proves that the MEMS-I type accelerometer can record the strong structural vibration with acceptable accuracy and is feasible for daily vibration monitoring of the high-rise buildings. |
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| Keywords: | High-rise building MEMS accelerometer Structural vibration Modal frequency Field test |
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