Laser & Optoelectronics Progress, Volume. 52, Issue 10, 101202(2015)
Fiber-Optic Interferometer Projection Based on Wavelength Phase-Shifting for Three-Dimensional Profile Measurement
A novel three-dimensional profilometry technique by optical fiber interference projection is presented. This technique uses fiber laser interference fringes with fine sinusoidal property as carrier fringes to project. Take the wavelength-modulated laser as the light source to make the purpose of interference fringe phase-shift by accurately changing the current. The phase and three-dimensional (3D) profile of object can be calculated by the phase-shifting algorithm. In this experiment, the repetitive deviation of object diameter under 50 mm is less than 30 μm root-mean-square by using overlapping averaging 4-frame algorithm.
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Mao Xinjie, He Yong, Zhu Ronggang. Fiber-Optic Interferometer Projection Based on Wavelength Phase-Shifting for Three-Dimensional Profile Measurement[J]. Laser & Optoelectronics Progress, 2015, 52(10): 101202
Category: Instrumentation, Measurement and Metrology
Received: Jan. 14, 2015
Accepted: --
Published Online: Oct. 8, 2015
The Author Email: Xinjie Mao (xinjiemao@126.com)