Abstract:

The micro-vibration will descend the speed stability of space-born spectrum interferometer with swimming arm structure. In this paper, the character of vibration attenuation on interferometer is investigated. An integrated design methodology for low rigid vibration isolator and high sensitivity damper is proposed, and further an ultra-quiet-stable device for interferometer is designed, in which the passive isolation technology, isolating the mid and high frequency mechanical vibration of the satellite, is applied to ensure the on-orbit quietness, and the electro-magnetic damping technology, eliminating the low frequency mechanical resonance and shake introduced by low-frequency isolation, is applied to ensure the on-orbit stability. The ground micro-vibration test shows that the ultra-quiet-stable device could maintain the interferometer’s working condition and performance successfully.

Key words: Interferometer with swimming arm structure, Ultra quiet stable device, Micro vibration test