LW160.141-60

Overview

The LW160.141-60 system utilizes the Labworks MT-160 thruster and PA-141 linear power amplifier to form the highest performance dedicated modal test system. The thruster provides a full 1.4 inch stroke capability, has a low suspension spring rate and a light-weight armature, and its body features a through hole plus a single collet or thread load attachment to accommodate both tension wire and stinger modal testing. The PA-141 amplifier is direct coupled to the shaker to give maximum performance at DC through high frequencies, can be easily switched from voltage source mode to current source mode for force input testing applications, and provides a voltage-proportional-to-current signal output that facilitates servoed force test operation. Dual bar graphs display system operating levels and internal and external interlocks help protect the system from accidental abuse. Sine force: 60 lbs force pk. Random force: 28 lbf rms random. Shock force: 70 lbf pk shock. Frequency Range: DC to10,000 Hz. Maximum Acceleration: 100 g pk, bare table; 38 g pk, 1.0 lb. load; 11 g pk, 5 lb. load. Maximum Displacement: 1.4 inch pk-pk, bare table. Cooling: Amplifier: forced air; Shaker: cooling vacuum. Power Requirements: 3,000 VA @ 200, 220, or 240V\*, single phase 50/60 Hz. System components include MT-160 Electrodynamic Shaker, PA-141 Linear Power Amplifier, CB-152-160 Cooling Vacuum, MS-129-160 Modal Stinger Kit, and interconnect cables and hoses. Optional items listed are VL-144/VL-145 Vib.Controller, SC-121 Sine Servo Controller, SG-135 Manual Sine Controller, Rack Cabinet, Accelerometer Package, and SI-160 Base Isolation Mounts, and 100V, 110V operation requires an optional step up transformer. The LW160.141-60 is described as ideal for most modal test applications. It explicitly accommodates both tension wire and stinger modal testing via the thruster body’s through hole and single collet or thread load attachment. The system supports force input testing and servoed force test operation by providing a PA-141 amplifier that can switch between voltage source and current source modes and outputs a voltage-proportional-to-current signal.