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发布时间：2025-04-29
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| 影响因子： | 3.7 |
| DOI码： | 10.1088/1361-665X/acd60c |
| 所属单位： | 长江大学电子信息与电气工程学院 |
| 教研室： | 电子系 |
| 发表刊物： | Smart Materials and Structures |
| 关键字： | smart aggregates, piezoceramics, structural health monitoring, acoustic impedance matching |
| 摘要： | Piezoceramic-based ultrasonic transducers have demonstrated the feasibility and effectiveness of functioning as smart aggregates (SAs) to detect damages for concrete structures in laboratory-sized structural members. The restriction of its further engineering application is the limited propagation distance due to the large energy loss during wave transmission. Aiming to reduce the energy loss of piezoceramic-based sensors, the authors proposed a high-performance piezoceramic-enabled SA based on acoustic impedance matching principle. The main contribution to the performance enhancement comes from the proposed surface treatment of the lead zirconate titanate patch and acoustic impedance matching layer. Comparative experiments with commercial SAs validate the improved performance. Besides, a field test with different wave propagation distances fully illustrates the perspective of the proposed superior transducer in large infrastructure engineering applications |
| 第一作者： | 李修权 |
| 论文类型： | 期刊论文 |
| 学科门类： | 工学 |
| 卷号： | 32 |
| 期号： | 075007 |
| 发表时间： | 2023-06-01 |
| 收录刊物： | SCI |
