Microvibration Measurement Based on Multichannel Projector-Camera System

Microvibration Measurement Based on Multichannel Projector-Camera System

A noncontact rapid microvibration measurement method is proposed based on multichannel projector-camera system and phase shift profilometry. The multichannel characteristics of color image can be used to calculate vibration information dynamically by collecting only one piece of image. The waveform...

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Veröffentlicht in:Journal of lightwave technology 2019-06, Vol.37 (11), p.2713-2718
Hauptverfasser: Lyu, Chengang, Gao, Jiale, Jin, Jie
Format: Artikel
Sprache:eng
Schlagworte:
Cameras
Charge coupled devices
Color coupling
Color imagery
Couplings
Crosstalk
Frequency ranges
Image color analysis
micro-vibration measurement
phase shift profilometry
Trajectory
Vibration measurement
Vibrations
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Beschreibung
Zusammenfassung:A noncontact rapid microvibration measurement method is proposed based on multichannel projector-camera system and phase shift profilometry. The multichannel characteristics of color image can be used to calculate vibration information dynamically by collecting only one piece of image. The waveform within a frequency range from 0.1 to 2 Hz is measured accurately by means of this vibration measurement technology, and minimum vibration amplitude is about 163 um. The system can be achieved by a standard low cost commercial charge coupled device camera with 30 frames/s.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2018.2878851