[S-GD23] 重力・ジオイド

[SGD23-05] 干渉計型重力勾配計の小型可搬化開発

*潮見 幸江¹ (1.潮見幸江)

キーワード：重力勾配, 環境計測

We are developing a portable laser-interferometric gravity-gradiometer for environmental measurements. In the gravity gradiometer, differential accelerations between two test masses, which are in free fall at different heights in a vacuum tank, are measured by a laser interferometer. A prototype of the gravity gradiometer was built up, and its performance was tested at the Sakurajima Volcanological Laboratory of the Kyoto University. We will report the current status of the development.