Test Systems for Platforms Crosshole Sonic Logging System (CSL) Olson's Best Selling Nondestructive Testing System to Test Newly Placed Shaft Foundations Crosshole/Downhole Seismic System (CS/DS) Crosshole/Downhole Seismic (CS/DS) investigations provide information on dynamic soil and rock properties. Impact Echo System (IE) Impact Echo (IE) investigations are performed to assess the condition or thickness of slabs, beams, columns, walls, pavements, runways, tunnels, and dams. Impact Echo Scanning System (IES) Impact Echo Scanning (IES) investigations are performed on large structural members with smooth concrete where shallow voids, honeycomb, cracking or delaminations are of primary concern. Parallel Seismic System (PS) Parallel Seismic is more accurate, more versatile than other nondestructive surface techniques for determination of unknown foundation depths. Slab Impulse Response System (SIR) The Slab Impulse Response method is excellent for evaluating the condition of slab subgrade support. Sonic Echo/Impulse Response System (SEIR) Sonic Echo-Impulse Response is used for low strain integrity testing of piles and determination of deep foundation length. Spectral Analysis of Surface Waves System (SASW) Spectral Analysis of Surface Waves (SASW) investigations are typically applied to assess material stiffness and condition, and layer thickness. This test method can also be used to determine depth of surface cracks. Ultrasonic Pulse Velocity System (UPV) Ultrasonic Pulse Velocity (UPV) investigations are performed to assess the condition of structural members if access to both sides is available.
