Development Report:

# Impact Response Measurement of Poly-Urethane Sheet Using an Optical Interferometer

## Sa-nga Songmuang^{*}, Akihiro Takita^{**}, and Suphanchai Punthawanunt^{*}

^{*}Faculty of Science and Technology, Kasem Bundit University

1761 Pattanakarn Rd. Suanluang, Bangkok 10250, Thailand

^{**}Faculty of Science and Technology, Gunma University

1-5-1 Tenjin-cho, Kiryu 376-8515, Japan

^{2}N. In the experiment, 10 drop measurements are conducted and show good reproducibility of this method.

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*J. Robot. Mechatron.*, Vol.29, No.3, pp. 613-618, 2017

*J. Robot. Mechatron.*, Vol.29, No.3, pp. 613-618, 2017