Single Axis Vibration Isolation System Using Series Active-passive Approach

직렬형 능-수동 제진 방법을 이용한 1축 제진 시스템

To control the vibration transmitted to the precision instruments from ground has always been of great interest among the researchers. This paper proposes a single axis vibration isolation system which can be used as a module far a table top six axis isolator for highly precise measurement and actuation system. The combined active-passive isolation principle is used for vertical vibration isolation by mounting the instrument on a passively damped isolation system made of Elastomer along with the active stage in series which consists of very stiff piezo actuator. The active stage works in combination with the passive stage for working as a very low frequency vibration attenuator. The active stage is isolated from the payload disturbance through the Passive stage and thus modularity in control is achieved. This made the control algorithm much easier as it does not need to be tuned to specific payload.