We propose one fine partice size measurement technique with laser interference fringes which is expected to achieve both non-contact and in-line measurement of the diameter of several hundred nano meter particles. However, the principle of this measurement technique with laser interference fringes is not clear and applicability of fine particle size measurement is unclear. The objective of this study is to examine the principle of this measurement technique with laser interference fringes and evaluate its applicability. We measure the flow structure in a flow cell which is the test section with Particle Image Velocimetry (PIV) to optimize the setting of the flow cell in the measurement system. From the velocity profile along the flow cell, 20 mm downward from the inlet is set as the measurement point. Next, we visualize the laser interference fringes formed with a high-speed video camera to identify the appearance and the behavior of the laser interference fringes through fine particles in the flow cell. Finally, we measure both the time variation of the intensity of the laser interference fringes and the intensity of the scattering light with photodiodes. Passage time of a particle in the laser beam and the voltage intensity have correlation each other. The effect of particle sizes on the laser signal is discussed.
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ASME-JSME-KSME 2011 Joint Fluids Engineering Conference
July 24–29, 2011
Hamamatsu, Japan
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4440-3
PROCEEDINGS PAPER
Study on the New Fine Particle Size Measurement Technique With Laser Interference Fringes
Hiroto Sakaki,
Hiroto Sakaki
University of Tsukuba, Tsukuba, Ibaraki, Japan
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Akiko Kaneko,
Akiko Kaneko
University of Tsukuba, Tsukuba, Ibaraki, Japan
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Yutaka Abe,
Yutaka Abe
University of Tsukuba, Tsukuba, Ibaraki, Japan
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Masatoshi Ike
Masatoshi Ike
Apptex LLC, Tsuchiura, Ibaraki, Japan
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Hiroto Sakaki
University of Tsukuba, Tsukuba, Ibaraki, Japan
Akiko Kaneko
University of Tsukuba, Tsukuba, Ibaraki, Japan
Yutaka Abe
University of Tsukuba, Tsukuba, Ibaraki, Japan
Masatoshi Ike
Apptex LLC, Tsuchiura, Ibaraki, Japan
Paper No:
AJK2011-11018, pp. 2749-2758; 10 pages
Published Online:
May 25, 2012
Citation
Sakaki, H, Kaneko, A, Abe, Y, & Ike, M. "Study on the New Fine Particle Size Measurement Technique With Laser Interference Fringes." Proceedings of the ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D. Hamamatsu, Japan. July 24–29, 2011. pp. 2749-2758. ASME. https://doi.org/10.1115/AJK2011-11018
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