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- Title
648. Measurement of trajectories of piezoelectric actuators with laser Doppler vibrometer.
- Authors
Grigaliūnas, V.; Balčiūnas, G.; Vilkauskas, A.
- Abstract
Various measurement techniques have been developed for analyzing performance of piezoelectric devices. Recently laser Doppler vibrometer (LDV) has become a widely applied instrument for vibration measurements both in scientific studies and industry. The most common type of LDV is a single-point vibrometer. In this article we propose a system consisting of the single-point LDV, beam deflector and mirrors, which enable automated 2D/3D trajectory or 2D vibration measurements, where a high number of target points can be measured with a very high spatial resolution. We used two test objects to demonstrate the performance of the system: piezo-actuator, which transforms vibrations to the rotational movement and a micrometric screw with piezo-adjustment.
- Subjects
PIEZOELECTRIC devices; MICROACTUATORS; LASER Doppler velocimeter; VIBRATION measurements -- Instruments; PERFORMANCE evaluation; LASER beams; OPTICAL resolution
- Publication
Journal of Vibroengineering, 2011, Vol 13, Issue 3, p399
- ISSN
1392-8716
- Publication type
Article