Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5007753 | Optics and Lasers in Engineering | 2017 | 8 Pages |
â¢A new fully automatic scanning methodology for measuring vibrations is proposed.â¢The methodology uses a 3D camera and a 3D CAD-file in combination with a scanning laser Doppler vibrometer.â¢3D pose estimation techniques are used to find a predefined sample-object and automatically select sample points.
In this paper, a new fully automated scanning laser Doppler vibrometer (LDV) measurement technique is presented. In contrast to existing scanning LDV techniques which use a 2D camera for the manual selection of sample points, we use a 3D Time-of-Flight camera in combination with a CAD file of the test object to automatically obtain measurements at pre-defined locations. The proposed procedure allows users to test prototypes in a shorter time because physical measurement locations are determined without user interaction. Another benefit from this methodology is that it incorporates automatic mapping between a CAD model and the vibration measurements. This mapping can be used to visualize measurements directly on a 3D CAD model. The proposed method is illustrated with vibration measurements of an unmanned aerial vehicle