Measurement of Membrane Displacement Using a Motionless Camera |
| K. Murawski
Military University of Technology, Institute of Teleinformatics and Automatics, S. Kaliskiego 2, 00-908 Warsaw, Poland |
| Received: May 12, 2014 |
| Full Text PDF |
| The paper presents a technique for measuring membrane displacements with one motionless camera. The method relies on measuring the distance to an object based on one image obtained from a motionless camera with a fixed-focus lens. It is proven that the used technique allows monitoring the frequency and amplitude of vibration. The tests were performed for the oscillation frequency in the range from 0.5 Hz to 6 Hz and deviations from the neutral position in the range of ± 3 mm. |
DOI: 10.12693/APhysPolA.128.10 PACS numbers: 06.30.Bp, 07.05.Pj, 07.07.Df |