The Vibration Test Laboratory (VTL) The National Aeronautics and Space Administration is America’s civil space program and the global leader in space exploration. OverviewThe Vibration Test Laboratory (VTL) provides testing of articles that includes sinusoidal, random, shock, classic (half sine, saw tooth, etc.) shock response spectrum (SRS), imported pulse, superimposed – random on random and sine on random, gunfire and sine burst. The lab provides closed loop vibration test systems typically consisting of electrodynamic shakers, instrumentation, signal conditioning, a controller and amplifier. Recent laboratory upgrades include capabilities for extreme launch environments (55,000 lbf with 3” pk-pk) and simulated pyro shock (3750g SRS to 10kHz).