Technical specifications of our scanner

  • Suitable for low frequency applications using a broadband multi-layer piezoelectric polymer material, PVDF.
  • Separate transmitter (Tx) and receiver (Rx) ensure that the reflection from transmitted pulses to the concrete surface does not interfere with the receiving signals on the second roll.
  • Dual interface allows the operator to analyze the entire 3D volume after scanning (zoom, scan, rotate, etc.) as well as real time monitoring.
  • Access to the volume sections such as B scans, C scans or D scans that increase clarity and reduce inspection time and interpretation errors.

Technical specifications

§  Typical scan speed 10 cm/sec
§  Penetration depth 50 cm
§  Real-time 3D video recording
§  Dry coupling
§  Frequency range ~ 50 – 200 kHz
§  Resolution ~ 1 cm
§  Detection of cracks, voids, air pockets, delaminations, rebars & technical pipes
§  Measurement of concrete thickness in addition to depth & position of features and defects
§  Concrete velocity measurement (strength)
§  Total Focusing Method in both cross- and along track direction.

Total focusing method

§  Captured data is processed using a synthetic aperture technique (SAFT).
§  The technique offers a different way of focusing, compared to the mechanical focusing (curved transducer or acoustic lens) or phased array.
§  A synthetic aperture mimics a large transducer by sampling the area at many points.
§  SAFT is based on subsequent focusing of the data measured on an aperture to each point in the reconstructed area through the superposition of the time registers.
§  Compared to conventional A-scan and B-scan techniques, SAFT can suppress stochastic noise and help to position the reflectors more accurately in the volume.