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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).


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


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


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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Triton BFET System

(Balanced Field Electromagnetic Technique)

Triton Electronics (front)
Triton Electronics (rear)

Triton BFET System

  • Detects both surface and sub-surface cracks in welds and base metals
  • Minimum surface preparation
  • No couplant required
  • Scanning speed up to 1 foot per second
  • Displays high resolution, real time, 3-D color graphics of the scan results
  • Results can be saved for further analysis or permanent archiving

See below for information about the Triton BFET Probes and Scanners

Triton BFET System

Probes & Scanners

BFET Hand Scanners
BFET Rolling Weld Scanner
BFET Claw tube to header weld scanner
BFET ID Tube Scanners
BFET Multi-Channel Array Scanner

Triton BFET probes and scanners

  • Customized to fit any application and weld profile
  • Curved, flat or welded surfaces can be quickly evaluated even through paints and coatings
  • Multi-Channel array scanner provides high resolution imaging and real-time display of flaws
  • ID scanners detects internal cracking of tube and pipes
  • Claw Scanner detects cracks in HRSG Tube-to-Header welds

See below for detection examples

Triton BFET System

Detection Examples

BFET waveform of stress cracking scanned with exterior scanner
Stress Cracking
BFET waveform of EDM notch captured with Claw weld scanner
EDM notch
BFET Wavform of lateral crack in pipe scanned with ID scanner
Lateral pipe crack

See below for report excerpts

Triton BFET System

Report Excerpts

Report Excerpt Waveform
Report Excerpt Equipment Diagram
Report Excerpt

See below for advantages over other technologies

Triton BFET System

Additional Information

Triton BFET System

  • Used anywhere cracking is an issue, including both ferrous and non-ferrous metals
  • Signal processing eliminates liftoff and noise signals
  • Supports single and multi-channel scanners up to 8 channels
  • Multi-Channel scanners give real-time high resolution imaging of flaws
  • Detects flaws within 1/8″ of surface or 3/8″ with deep penetrating scanner
  • Scans welds of similar and dissimilar metals

Additional Feature

Fusion Scanner

  • When both LFET and BFET options are used with Triton, we have created the Fusion Scanner
  • The Fusion combines both BEFT and LFET technologies into a single scanner
  • (link to fusion page)

ElectoMagnetic Acoustic Transducer (EMAT)

  • For ElectroMagnetic Acoustic Transducer method, surfaces need to be sandblasted
  • The EMAT method does not provide rapid scanning coverage, EMAT only scans a strip less that one-quarter-inch (¼″) wide

X-Ray (RT)

  • X-Ray methods have obvious deficiencies, including getting coverage and limitations due to testing while other outage activities are occurring

See below for more site options


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