Measurement of density distribution in a small cell by digital phase-shift holographic interferometry

Toshiharu Mizukaki; Takeshi Seto; Kazuyoshi Takayama

doi:10.1117/12.427028

8 May 2001 Measurement of density distribution in a small cell by digital phase-shift holographic interferometry

Toshiharu Mizukaki, Takeshi Seto, Kazuyoshi Takayama

Proceedings Volume 4416, Optical Engineering for Sensing and Nanotechnology (ICOSN 2001); (2001) https://doi.org/10.1117/12.427028
Event: Optical Engineering for Sensing and Nanotechnology (ICOSN '01), 2001, Yokohama, Japan

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.

Citation Download Citation

Toshiharu Mizukaki, Takeshi Seto, and Kazuyoshi Takayama "Measurement of density distribution in a small cell by digital phase-shift holographic interferometry", Proc. SPIE 4416, Optical Engineering for Sensing and Nanotechnology (ICOSN 2001), (8 May 2001); https://doi.org/10.1117/12.427028

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