Acoustic grating fringe projector for high-speed and high-precision three-dimensional shape measurements
Applied Optics, Vol. 46, Issue 15, pp. 3046-3051 (2007)
http://dx.doi.org/10.1364/AO.46.003046
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Abstract
A new acoustic grating fringe projector (AGFP) was developed for high-speed and high-precision 3D measurement. A new acoustic grating fringe projection theory is also proposed to describe the optical system. The AGFP instrument can adjust the spatial phase and period of fringes with unprecedented speed and accuracy. Using rf power proportional-integral-derivative (PID) control and CCD synchronous control, we obtain fringes with fine sinusoidal characteristics and realize high-speed acquisition of image data. Using the device, we obtained a precise phase map for a 3D profile. In addition, the AGFP can work in running fringe mode, which could be applied in other measurement fields.
© 2007 Optical Society of America
OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(150.6910) Machine vision : Three-dimensional sensing
(230.1040) Optical devices : Acousto-optical devices
ToC Category:
Optical Devices
History
Original Manuscript: June 9, 2006
Revised Manuscript: September 1, 2006
Manuscript Accepted: September 8, 2006
Published: May 1, 2007
Citation
Xuebing Yin, Huijie Zhao, Junyu Zeng, and Yufu Qu, "Acoustic grating fringe projector for high-speed and high-precision three-dimensional shape measurements," Appl. Opt. 46, 3046-3051 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-15-3046
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