地盤震動

[CS10-09] 6-axis measurement of earthquake ground motion, and the case study of the relationship between horizontal and rotational motions.

*Daiki Yamashita¹, Kimitoshi Sakai¹, Hitoshi Morikawa², Shigeo Matsuda³, Gunji Noda⁴, Makoto Hatamura⁴, Rysuke Mukaiorito⁴ (1. Railway Technical Researh Institute, 2. Tokyo Institute of Technology, 3. Clovertech, 4. Sanriku Railway)

Keywords:ground motion, angular velocimeters , noise floor, seismic observation, Fourier ratio of rotation and horizontal motion