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Technology Application
LFET RFET BFET ECT Ultrasound OSET Support

TesTex uses a variety of state-of-the-art electromagnetic techniques to scan for defects in both ferrous and nonferrous materials and structures.


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LFET RFET BFET ECT Ultrasound OSET Support
Boiler Tubes AGS Tanks Pipelines Feedwater Heaters Heat Exchangers Finned Tubes Condensers Welds
Radio Field Electromagnetic Technique Triton RFET
Balance Field Electromagnetic Technique Triton BFET
Off Surface Electromagnetic Technique OSET - Scout
Ultrasonic Inspection Helix XT IRIS Echo 20/20

This is a great place to check out Technical papers, Case Studies, Videos and Testimonials related to our specialized non-destructive testing products and services.

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IRIS - system

The Helix-XT is an ultrasonic based system for inspecting ferrous and nonferrous tubes from the inside. It is based on the Internal Rotating Inspection System (IRIS), which can be applied on almost any material.

With the Helix-XT, accurate thickness measurements can be taken at any location along the tube, so small changes in thickness are measurable and the exact location of pitting and corrosion can be determined.

The system uses an immersion pulse echo technique in which a stream of water is used to spin a turbine containing the transducer: see below.

The turbine rotates a mirror, set at 45 degrees, to reflect the ultrasonic pulses radially into the tube wall.

Reflections from the inner and outerwalls of the tube follow the same path back to the tranducer. The time interval between the first echo–the inner wall–and the second echo–the outer tube wall–measures the tube’s wall thickness.

One hundred percent of the tube is inspected through a helical path, which is created when the transducer head traverses through the tube.

The Helix-XT has a user-friendly setup panel and UT board control interface. Data is acquisition software records A, B and C scans and takes up to 719 readings per revolution.

A full-color data viewer software illustrates B and C scans.

The Helix-XT inspects tubes up to 30 meters (99 feet) in length with diameters from 0.350 inch (8.9mm) to 3.5 inches (88.9mm).

It includes a submersible, stainless steel pump with filter, and water flow adjusts up to 10 gallons per minute (GPM).

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