Laser & Optoelectronics Progress, Volume. 56, Issue 10, 100901(2019)
Measurement of Burning Biomass Particles via High-Speed Digital Holography
Fig. 1. Recording and reconstruction of digital particle hologram
Fig. 2. Schematic of experimental setup for burning particle measurement via high-speed digital holography
Fig. 3. Processing of typical hologram of bamboo powder. (a)Hologram; (b1) reconstructed image of magnified region at z=-2.5 mm; (b2) reconstructed image of magnified region at z=3.2 mm; (b3) depth-of-field extended image; (c) depth-of-field extended image of full hologram; (d) recognized 3D distributed particles. Scale bar represents 1 mm
Fig. 4. Particle morphology and its evolution. (a) Various particle morphologies; (b) morphology evolution in particle fragmentation
Fig. 5. Particle size distributions before and after combustion
Fig. 6. 3D trajectory of single particle. (a) Synthesized image from multi-frame reconstruction; (b) extracted particle and its z locations. Time interval between sequential images is 1 ms
Fig. 7. Radial speed distribution
Fig. 8. Axial speed distribution
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Longchao Yao, Xuecheng Wu, Xiaodan Lin, Yingchun Wu, Linghong Chen, Xiang Gao, Kefa Cen. Measurement of Burning Biomass Particles via High-Speed Digital Holography[J]. Laser & Optoelectronics Progress, 2019, 56(10): 100901
Category: Holography
Received: Nov. 16, 2018
Accepted: Dec. 13, 2018
Published Online: Jul. 4, 2019
The Author Email: Wu Xuecheng (wuxch@zju.edu.cn)