DuoBase System


The LW140.141-110D6 Flexure Table system combines our ET-140 shaker and PA-141 linear amplifier together with our 6 inch square Flexure suspension Table. This combination provides a large mounting surface with increased load carrying capacity for larger or heavier than normal test specimens not requiring the force of a larger Shaker system. The unique flexure suspension table guidance eliminates the requirement for the oil found in slip table systems. This oil-less design allows operation at other than the horizontal orientation, and adds increased suspension guidance reducing the effects of heavy and off-center loads on the shakers armature suspension system.. The Table flexures are fully rated for 1 inch p-p operation, and the shaker can be uncoupled from the table for operation in its normal vertical orientation with specimens mounted directly to the shakers armature.

The air cooled PA-141 linear amplifier is direct coupled to the shaker to give the maximum performance at low and high frequencies. Dual meters display the system operating levels and complete shaker and user interlocks help protect the system from accidental abuse.

General Specifications
Sine force 110 lbs force pk
Random force 45 lbf rms random
Shock force 110 lbf pk shock
Frequency Range: DC to 6,500 Hz
Maximum Acceleration:
        Horizontal, w/ Slip Table

        Vertical, no Slip Table

29 g pk, bare table
5.8 g pk, 15 lb. load
3.2 g pk, 30 lb. load

110 g pk, bare table
55 g pk, 1 lb. load
10 g pk, 10 lb. load
Maximum Displacement: 1.0 inch pk-pk, bare table
Cooling: Amplifier: forced air
Shaker: cooling vacuum
Power Requirements: 3300 VA @ 200, 220, or 240V*, single phase 50/60 Hz
System Components
ET-140 Electrodynamic Shaker
PA-141 Linear Power Amplifier
DB-140 - DuoBase
FS-140 Integrated Field Supply
CB-152-140 Cooling Vacuum
Interconnect Cables and Hoses


*100V, 110V operation requires optional step up transformer.

System Options
VL-144/VL-145 Vibration Controller
SC-121 Sine Servo Controller
SG-135 Manual Sine Controller
Rack Cabinet
Accelerometer Package
SI-140 Base Isolation Mounts