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9 January 2023 Measurement of granular temperature based on transmission speckle visibility spectroscopy
Shijie Wang, Yiming Li, Quan Chen, Liang Zhou, Ping Kong
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Proceedings Volume 12507, Advanced Optical Manufacturing Technologies and Applications 2022; and 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022); 125070O (2023) https://doi.org/10.1117/12.2654779
Event: 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022), 2022, Changchun, China
Abstract
As an important parameter to reflect the degree of disordered movement of granular system, granular temperature needs to be measured by speckle visibility spectroscopy (SVS). The traditional reflected SVS requires polarizers at the light source and detector to filter the reflected light from the surface and the large thickness of the particle is required. In this paper, a transmission speckle visibility spectroscopy method is proposed. Results show that the method can effectively improve the signal-to-noise ratio of speckle signal and reduce the complexity of measuring device. Moreover, it has great compatibility for the granular system with different thickness.
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Shijie Wang, Yiming Li, Quan Chen, Liang Zhou, and Ping Kong "Measurement of granular temperature based on transmission speckle visibility spectroscopy", Proc. SPIE 12507, Advanced Optical Manufacturing Technologies and Applications 2022; and 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022), 125070O (9 January 2023); https://doi.org/10.1117/12.2654779
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KEYWORDS
Speckle
Particles
Visibility
Reflection
Spectroscopy
Light sources
Sensors
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