Vibration isolation system

10/01/1998

Vibration isolation system

STACIS 2000 is an active piezoelectric vibration control system that also incorporates passive vibration isolation, virtually canceling vibration across a broad frequency range. The main components of the system are a user interface controller and three or four active, independent isolators positioned under the equipment they serve. Each isolator houses five piezoelectric actuators and a passive rubber mount that is 100 times stiffer than standard pneumatic isolators. The actuators control vibration along three axes by using information on disturbances received from absolute velocity sensors. This information causes the actuators to expand and contract as required, moving out of the way of the vibration and diminishing its impact. STACIS is a six-degrees-of-freedom system with a >0.2 Hz resonant frequency, 0.3-250 Hz active bandwidth, and a 0.3-sec settling time after a step-input. Technical Manufacturing Corp., Peabody, MA; ph 978/532-6330 or 800/542-8725, fax 978/531-8682.