DuoBase System


The dLW127.153-500D12 is the largest of the current family of Labworks vibration test systems featuring our dLAB series high efficiency digital switch mode shaker amplifier and DuoBase slip table. Its large 12 inch square oil film slip table mounting surface provides high load and off-center moment capability for applications where heavy or large loads are to be tested. The DB-127 also allows the ET-127 shaker to be uncoupled from the slip table and rotated into its vertical position allowing normal vertical testing of smaller components directly on the shakers armature. The shakers internal high lateral stiffness carbon composite armature suspension reduces problems associated with off-center loads when operating vertically. The ET-127 Shaker in this system is equipped with a degauss coil to ensure low stray magnetic field for sensitive applications. The air cooled dPA-153 dLAB shaker amplifier delivers full system performance while minimizing power and amplifier cooling requirements. The amplifier's multi-function digital display provides amplifier operational status as well as system peripheral and complete vibration system operational diagnositcs. Built in shaker-specific current limiting and full internal, system and external electrical interlock connections and logic help protect the system and test specimen from accidental abuse

General Specifications
Sine force 500 lbs force pk
Random force 350 lbf rms random
Shock force 1,050 lbf pk shock
Frequency Range:
        Horizontal, w/ Slip Table
        Vertical, no Slip Table

2.0 to 3000 Hz
2.0 to 4,500 Hz
Maximum Acceleration:
        Horizontal, w/ Slip Table

        Vertical, no Slip Table

26 g pk, bare table
13 g pk, 20 lb. load
6.3 g pk, 60 lb. load

100 g pk, bare table
50 g pk, 5 lb. load
11 g pk, 40 lb. load
Maximum Displacement: 1.0 inch pk-pk, bare table
Cooling: Amplifier: forced air
Shaker: cooling vacuum
Power Requirements: 3,500 VA @ 200-240V, single phase 50/60 Hz
System Components
ET-127 Electrodynamic Shaker
DB-127 12 in.sq. Slip Table Base
dPA-153-7 Amplifier, Degauss & Field Supply
CB-127 Cooling Vacuum
Amplifier Cabinet
Interconnect Cables and Hoses
*Consult the factory for low line voltage operation details.
System Options
VL-144/VL-145 Vibration Controller
SC-121 Sine Servo Controller
SG-135 Manual Sine Controller
CS-123 Current Source Signal Conditioner
LS-127 Armature Load Support/
AI-127 Base Isolation