Non-Destructive Testing and Material Inspection


3D representations of pittings, cracks and corrosions inside CNG cylinder, respectively.

3D representations of pittings, cracks and corrosions inside CNG cylinder, respectively.

CTECH Labs Center for Non-Destructive Testing and Material Inspection provides the Electrical Capacitance Volume Tomography (ECVT) imaging system that comprises of data acquisition system (DAS), computer system with image reconstruction and post-processing software along with customized sensor that is suitable for customers applications.

  • Material Signal Characterization
  • SonaCTx (CNG Cylinder Scanner)
  • ECVT Material Scanner
  • Neutron Tomography


Our ultrasonic imaging system for non-destructive testing (NDT) applications combines ultrasonic wave reflection and transmission modes, providing high resolution of imaging capability to detect pitting, cracks and corrosions of several hundreds micron in size inside metal wall. The system is prominently used for high pressure (up to 250 bar) compressed natural gas (CNG) cylinder inspection. The ultrasonic imaging system comprises of data acquisition system (DAS), computer system with signal analysis and image reconstruction software, and scanning gantry with sensor head for automatic scanning. Our image reconstruction software generates 2D and 3D images of pitting, cracks and corrosion inside metal walls. The system is the only automatic ultrasonic scanner system available in the market that provides such 2D and 3D visualization. The visualization eases operators making decision during inspections. Water is circulated automatically between water tank and water pool located in the sensor head to be used as couplant , providing a smooth scanning and low operating cost.

ECVT Image of NDT (click on image for enlarge)

Result Image Samples: Cracks/Pitting, General Corrosion, Normal Semi-automatic ultrasonic scanner SoniaCTx 001. SonaCTx ultrasonic scanning system, comprising of 4channel DAS, computer system for control and image reconstruction and sensor head.

Automatic water couplant circulation system. Robot Gantry Scanning results and visual examination of cut-off cylinder shows very good match.