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Products

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

LFET Products

Low Frequency Electromagnetic Technique (LFET) products are used to inspect storage tanks, other convex or concave ferrous surfaces, as well as nonferrous metal tubing/piping surfaces.

RFET Products

Remote Field Electromagnetic Technique (RFET) products are used to quickly and accurately inspect ferrous tubing found in heat exchangers and drum-to-drum boiler generating banks.

BFET Products

Balance Field Electromagnetic Technique (BFET) products are used to detect surface and sub-surface cracking in welds and base metals.

ECT Products

Eddy Current Technique (ECT) is used to quickly and accurately inspect non-ferrous metal tubing from the tube internal dimension (ID).

Ultrasound

TesTex has enhanced ultrasonic (UT) inspection for many different applications, including tank shells, UT prove-ups, finned tubes and waterwalls.

Probes

TesTex produces standard and custom probes (and calibration tubes) for all of its ID (internal dimension) inspection equipment.

Articles

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

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Helix XT IRIS

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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