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Measurement of the Velocity of Nanoparticles in Nanofluids using the Zero - Crossing Method
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| Maghsoud Arshadi pirlar Mr * 1, Mohammad mehdi Jahan bakhshian Mr, Rohollah Karimzadeh Mr |
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Abstract: (2982 Views) |
| In this paper, we measure the velocity of nanoparticles suspended in a fluid by using the "zero-crossing" of the intensity fluctuation of laser speckles. The speckle patterns are formed by illuminating the CdZnS nanoparticles suspended in ethanol with a Gaussian laser beam. The zero crossing number of scattered speckle pattern is detected in diffraction field by a circular aperture in front of power meter. The velocity of nanoparticles is measured by counting the zero crossing of the spatially integrated speckle intensity fluctuation in different temperature. |
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| Keywords: Gaussian Laser Beam, Nanoparticle, Speckle Intensity, Zero-Crossing |
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Full-Text [PDF 484 kb]
(703 Downloads)
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Type of Study: Research |
Subject:
Special
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