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Wall Thickness Gauges

Ultrasonic Wall Thickness Measurement for Accurate Material Inspection

Ultrasonic wall thickness measurement works by emitting sound waves into the material from the accessible surface. These waves travel through the material at a known speed and are reflected back when they hit the opposite surface. The device measures the time it takes for the sound waves to make the round trip and then calculates the material’s thickness based on this time.

This method allows you to measure the wall thickness of ship hulls, pipes, tanks, and machine parts – even when the measuring area is difficult to access. Ultrasonic testing is suitable for hard and homogeneous materials, such as metal, glass, and hard plastic, but not recommended for porous or inconsistent materials like concrete, asphalt, Teflon, or wood.

We Offer Two Measuring Methods Depending on Your Needs:

  • Pulse-Echo: Measures the total thickness, including any surface coatings such as paint or lacquer. This method is ideal for general inspections where you need to know the combined layer thickness.
  • Echo-Echo: An advanced technique that ignores surface coatings like paint. By detecting the second echo – the reflection from the base material beneath the coating – this method determines the true material thickness without having to remove paint or protective layers. This is especially useful when inspecting treated or coated surfaces.

Explore Our Full Range of Measurement Instruments

We offer more than just wall thickness gauges. You’ll also find:

Whatever your inspection or quality control needs, we provide reliable and accurate instruments for industrial use, research, and safety monitoring.