What is TFM?

Total Focusing Method (TFM) is an examination technique, that has been added into codes and standards and is becoming increasing used across all engineering sectors including aerospace, nuclear and oil & gas. The method involves the combination of classic Full Matrix Capture (FMC) data acquisition and TFM data reconstruction. It has the potential capabilities of improved resolution and depth of field over a larger region with a reduction in scattering of sound waves from material noise, enhancing efficiency and performance (ASME section V article 4, 2019 edition).

Our TFM course is designed to educate advanced inspectors in the methodologies and techniques to accurately identify and interpret flaws in challenging inspections, focusing on the use of ultrasonic imaging algorithms that improves the profiling of the indication. Candidates will learn about the TFM processing software to reconstruct several paths/modes, evaluating and examining flaw characterisation, flaw dimensioning, display settings, plane wave imaging (PWI), weld and corrosion examinations and amplitude fidelity.

The course syllabus has been written in accordance with ASME Section V and 2020 SNT- TC-1A. It will cover the theoretical understanding of TFM in addition to hands-on testing using the latest equipment.

The Level 2 advanced course will address the following issues:

• Overview of PAUT and FMC data collection
• Beam forming and resolution
• Amplitude fidelity, interface/dead zones and calibration
• Sensitivity correction
• Corrosion mapping
• FMC characteristics (direct modes and bi-modal techniques)
• Plane Wave Imaging (PWI)
• Understanding the various modes used in TFM and benefits of enhanced detection, characterisation and sizing
• Inspection of vertical angled joint faces
• Evaluation and examination including display settings, flaw characterisation, flaw dimensioning and software tools
• Weld and corrosion examinations including single v and double v welds
• Practical use of TFM phased array applications for austenitic stainless-steel and ferritic steel weld inspection
• Hands on practical testing on a wide range of samples using the latest technology equipment, such as the M2M GEKKO and the Omniscan X3

“At Lavender International we pride ourselves on delivering high quality training that equips technicians with the skills in making more informed decisions on equipment selection and optimising instrument parameters resulting in a more well-rounded, highly skilled, certified advanced NDT inspector,” Tim Armitt, Managing Director and President, commented.

Course Duration

The course will be 80 hours over 10 days – 9 days training and 1 day examination covering both theory and practical.


To be eligible for this course candidates must hold UT Level 2 Welds PCN or SNT certification. Ideally candidates will have an understanding of PAUT.



Our TFM course is available at Our UK facility at the Advanced Manufacturing Park, Rotherham; and at our USA facility in Houston, Texas.

UK office – AMP USA office – Houston, Texas On-site locations
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If you would like further information about this course, please contact us.

Scientific Calculator
Safety Boots
Overalls/Lab Coat
Tape Measure

All other equipment and training materials are provided by Lavender International.
Protective gloves, protective eye glasses and plastic aprons are also available for the use of students.

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