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回顾了振动模态分析技术中关于传感器最优布点方法的研究，针对桥梁结构健康监测中有关指纹更新识别以及模型修正所需的模态动态信息，提出了一套传感器优化布设的方案，目的在于迅速有效地从一个自由度繁杂的结构模型中选择出关键的测点位置，在含噪声的环境中实现对结构状态改变信息的最优采集，改善早期对大型柔性结构的整体探伤能力．
This paper reviews the research on the optimal placement method of sensors in vibration modal analysis. Aiming at the modal dynamic information needed for fingerprint identification and model modification in bridge structural health monitoring, a set of sensor optimization layout is proposed, It can quickly and effectively select the key measuring points from a complicated structural model with a high degree of freedom, realize the optimal acquisition of information of structural state changes in a noisy environment, and improve the overall early detection of large flexible structures.