Time of Flight Diffraction (TOFD)

Time of Flight Diffraction (TOFD) 03 MarchMar 2025 - 14 MarchMar 20251 Tonsley Blvd, Tonsley, South Australia
Time of Flight Diffraction (TOFD)

Unlock your potential with our TOFD course—because seeing is believing, and you'll see what others can't!

Time-of-Flight Diffraction (TOFD) is a non-destructive testing (NDT) method that uses ultrasonic waves to detect flaws in materials, particularly welds. Here’s a breakdown of what you need to know:

What is TOFD?

TOFD is an advanced ultrasonic technique that measures the time it takes for an ultrasonic pulse to travel through a material and reflect back from a flaw. It’s highly accurate for detecting and sizing cracks and other defects.

How Does TOFD Work?

  1. Transmitter and Receiver: TOFD uses two probes—a transmitter and a receiver—placed on opposite sides of the weld or material being inspected.
  2. Ultrasonic Pulse: The transmitter emits an ultrasonic pulse that travels through the material.
  3. Detection: If the pulse encounters a flaw, it is reflected back to the receiver.
  4. Analysis: The time it takes for the pulse to return is analysed to determine the location and size of the flaw.

Benefits of TOFD

  • High Accuracy: TOFD provides precise measurements of flaw depth and length.
  • Speed: It’s a fast inspection method, often covering large areas quickly.
  • Comprehensive Data: TOFD generates detailed data, which can be stored and analysed later.


  • Weld Inspection: Commonly used in the inspection of welds in pipelines, pressure vessels, and structural components.
  • Structural Testing: Used in various industries like oil and gas, aerospace, and construction to ensure the integrity of critical components.

Why Choose TOFD?

  • Non-Destructive: Ensures the material remains intact after testing.
  • Reliability: Widely trusted for its accuracy and repeatability.
  • Efficiency: Reduces inspection time while providing detailed results.

You'll be equipped with a valuable skill set that's in high demand across multiple industries, ensuring structural safety and integrity in critical applications.


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Kuzer Technical, 1 Tonsley Blvd, Tonsley, South Australia


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Office Q on the lower ground floor
1 Tonsley Blvd
Tonsley SA 5042

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