Development of control scheme of test mass motions in microgravity

Research Project

Project/Area Number	22840048
Research Category	Grant-in-Aid for Research Activity Start-up
Allocation Type	Single-year Grants
Research Field	Particle/Nuclear/Cosmic ray/Astro physics
Research Institution	National Astronomical Observatory of Japan
Principal Investigator	AKUTSU Tomotada 国立天文台, 光赤外研究部, 助教 (40564274)
Project Period (FY)	2010 – 2011
Project Status	Completed (Fiscal Year 2011)
Budget Amount *help	¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000) Fiscal Year 2011: ¥1,495,000 (Direct Cost: ¥1,150,000、Indirect Cost: ¥345,000) Fiscal Year 2010: ¥1,625,000 (Direct Cost: ¥1,250,000、Indirect Cost: ¥375,000)
Keywords	微小重力 / 防振 / 重力波 / 超精密計測
Research Abstract	For the future spaceborne gravitational-wave detector, we have developed the capacitive sensor and actuator for controlling a test-mass motion in space. Suspended by a double torsion pendulum, the test mass is kept almost free from the seismic motion in its 2 degrees of freedom.