3D Laser Scanning Vibrometer

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：激光扫描测振仪可以非接触式测量在高频范围(高达1 MHz)内振动的结构表面的位移和速度幅度。3D激光扫描测振仪跟踪具有任何复杂几何形状的结构的三维振动幅度。目前还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该仪器来开发和验证用于结构健康监测(SHM)的声学方法。这些声学SHM方法适用于广泛的材料和长度尺度。该仪器在表面特性和测量距离方面提供了必要和所需的灵活性。后者直接定义了结构表面上的网格密度。该仪器的应用领域从结构工程(如桥梁)到MEMS-微系统技术和医学工程中边长小于1毫米的样品。此外，3D激光扫描测振仪是验证动态有限元分析的强大工具，是对TUHH由DFG资助的六足机器人的补充。

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.