National Institute of Standards and Technology, Acquisition and Assistance Division, Bldg. 301, Room B117, Gaithersburg, MD 20899

66 -- ACTIVE VIBRATION ISOLATION SYSTEM POC POC: Paul Cataldo (301) 975-6332/CO: Pauline Mallgrave (301) 975-6330 The National Institute of Standards and Technology, Gaithersburg, MD is seeking sources for its proposed 42,236 gross square meter Advanced Technology Laboratory who can provide a desired quantity of two each of an active vibration isolation system which can be added as an enhancement to a passive pneumatic vibration isolation system--The purpose of the active system is to attenuate low-frequency translational and rotational vibrations associated with the resonances of the payload on the pneumatic springs--This system will operate to maintain the payload in a fixed position by actively suppressing both steady-state and transient vibrations of the payload in all six degrees of freedom--The static load capacity of this system shall be 2250 Kg minimum and each isolator shall be capable of producing 9 Kg minimum resistance at its peak output--The active vibration control frequency range shall be 0.25 Hz to 25 Hz--Performance outside this range will be provided by the passive pneumatic system. The active system shall exhibit amplification of less than 1.1 (approx. 1 decibel) at its active resonance frequency and shall provide attenuation at 2 Hz of 70 percent (approx. 10 decibels) at 2 Hz--This system shall provide a vibration settling time on the order of 20 milliseconds--Interested sources should submit all information necessary for the Government to fully evaluate the proposed product and should include but not necessarily be limited to any and all catalog cut sheets, product brochures, drawings, calculations, and technical data which is necessary to demonstrate the proposed product fully meets the performance and functional criteria stated above-- Contact Paul Cataldo, National Institute of Standards and Technology, Acquisition and Assistance Division, Building 301, Room B117, Gaithersburg, MD 20899-0001 within 30 days of this publication. (0248)

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