3D Laser Scanning Vibrometer

3D激光扫描测振仪

• 批准号: 457416916
• 金额: --
• 依托单位: Technische Universität Hamburg
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2021
• 资助国家: 德国
• 起止时间: 2020-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/457416916?language=en
• 关键词: 3D; Laser; Scanning; Vibrometer

3D Laser Scanning Vibrometer to measure the three-dimensional dynamic response of structures in the high-frequency range:Laser Scanning Vibrometry enables non-contact measurement of displacement- and velocity amplitudes of structural surfaces vibrating in the high-frequency range (up to 1MHz). The 3D Laser Scanning Vibrometer tracks the three-dimensional vibration amplitudes of a structure with any complex geometry. An alternative technology for such measurements does not exist. The working groups at TUHH use the instrumentation in fundamental research to develop and validate acoustic methods for Structural Health Monitoring (SHM). These acoustic SHM-methods are applicable to a wide range of materials and length scales. The instrumentation offers the necessary and desired flexibility regarding surface property and measuring distance. The latter directly defines the mesh density on the structural surface.Fields of application of the instrumentation reach from structural engineering (e.g. bridges) to MEMS-samples with side lengths of less than one millimeter in microsystems technology and medical engineering. Furthermore, the 3D Laser Scanning Vibrometer is a powerful tool to validate dynamic FE analyses and complements the DFG-funded Hexapod at TUHH.

3D激光扫描测振仪可在高频范围内测量结构的三维动态响应：激光扫描测振仪可在高频范围（高达1MHz）内非接触式测量结构表面振动的位移和速度振幅。3D激光扫描振动计可跟踪具有任何复杂几何形状的结构的三维振动幅度。不存在用于这种测量的替代技术。TUHH的工作组在基础研究中使用仪器来开发和验证结构健康监测（SHM）的声学方法。这些声学SHM方法适用于各种材料和长度尺度。该仪器在表面特性和测量距离方面提供了必要和理想的灵活性。仪器的应用领域从结构工程（如桥梁）到微系统技术和医疗工程中边长小于1毫米的MEMS样品。此外，3D激光扫描振动仪是验证动态FE分析的强大工具，并补充了DFG资助的TUHH Hexapod。