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Proceedings Paper

Measurement of density distribution in a small cell by digital phase-shift holographic interferometry
Author(s): Toshiharu Mizukaki; Takeshi Seto; Kazuyoshi Takayama
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Paper Abstract

Using digital phase shift holographic interferometry (DPSHI), the internal density distribution of water which is sealed in a cylindrical cell has been measured under the condition that one of the cylinder end walls is oscillated by a PZT-actuator, which is driven by high frequency: 20kHz. The density distributions concerned with three different end wall pressures have been visualized and analyzed by DPSHI. Carre algorithm is employed for phase interpolation to reproduce phase maps. The absolute density changes in the cell have been demonstrated. The results have indicated that DPSHI can allow us to measure small density changes in narrow space under high frequency oscillation.

Paper Details

Date Published: 8 May 2001
PDF: 4 pages
Proc. SPIE 4416, Optical Engineering for Sensing and Nanotechnology (ICOSN 2001), (8 May 2001); doi: 10.1117/12.427028
Show Author Affiliations
Toshiharu Mizukaki, Tohoku Univ. (Japan)
Takeshi Seto, Seiko Epson Corp. (Japan)
Kazuyoshi Takayama, Tohoku Univ. (Japan)


Published in SPIE Proceedings Vol. 4416:
Optical Engineering for Sensing and Nanotechnology (ICOSN 2001)
Koichi Iwata, Editor(s)

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