TechCorr's 3D structured light inspections use a projected light pattern to assess dents, gouges, corrosion pits, and other defects on the exterior of pipes, vessels, and structures.
After the inspection we provide all the data to:
- determine whether or not repair or replacement is necessary
- prioritize in-line-inspection (ILI) data
- assess the remaining-life of the equipment.
Acoustic emission testing (AET) is a powerful screening technique that provides real time, 100% volumetric monitoring of in-service equipment.
AET uses advanced equipment to detect the acoustic signals produced within material that is under stress. Software analyzes the collected signals and identifies the location and severity of any structural defects found, such as:
Automated corrosion mapping employs multiple ultrasonic techniques to:
- perform a 100% surface scan of equipment
- produce a detailed map of the corrosion experienced by equipment
- size the length, width, depth, and orientation of defects.
The software used by TechCorr for automated corrosion mapping, RSTRENG®, provides fitness-for-service (FFS) assessments. The U.S. Department of Transportation accepts this as an evaluation technology.
Guided wave ultrasonic testing (GWUT), also known as long range ultrasonic testing (LRUT), is a screening tool for rapidly testing long lengths of pipe from a single inspection point.
GWUT provides 100% coverage of the pipe wall without having to remove insulation or coating. It quickly identifies areas of corrosion or erosion that may then undergo more detailed inspections using other NDT techniques, such as radiography or 3D structured light.
Phased array ultrasonic testing produces real-time sectorial scans (S-Scans) that provide a full volumetric examination from a single inspection point. Phased array equipment can detect defects regardless of their orientation to the transducer.
Phased array ultrasonic testing can be used for:
- inspection of welds
- thickness measurements
- corrosion inspection
- crack detection.
Time of flight diffraction (TOFD) is an ultrasonic screening tool that can rapidly scan welds and produce very accurate measurements of any defects found.
TOFD operates using a pitch and catch technique with two probes on either side of a weld. One probe transmits a series of ultrasonic pulses and another receives them. If a crack or other defect is present in the weld, the ultrasonic waves will diffract and the time of flight between transmitter and receiver will be affected. Based on the change in time of flight, weld defects can be located and sized.