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Thickness Measurement and Flaw Detection (EMAT, DCUT)

EMAT sensors permit non-contact and no-couplant measurements from -30ºC to 650ºC on most metallic materials. DCUT sensors provide no-couplant measurements for metallic and non-metallic components.
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Innerspec’s patented EMAT pulser technology and sensors permit using EMAT, DCUT, and conventional transducers from any manufacturer. EMAT sensors from Innerspec permit thickness measurement and normal beam (0⁰) flaw detection on most metallic components without contact or couplant at extreme temperatures (from -30⁰C to 650⁰C) and of rough, dirty, oxidized, and coated surfaces down to 0.3mm in thickness. DCUT sensors from Innerspec provide no-couplant measurement on both metallic and non-metallic components.



  • Non-contact EMAT technique.
  • Great accuracy (12.7µm-0.0005”) and lateral resolution (up to 3mm-0.125”).
  • Capable of temperatures from -30ºC to 650ºC with no active cooling.
  • Capable of inspecting metals as thin as 0.3mm (0.010”).
  • 10+ sensor options for different applications.
  • Roller kits, encoders, and adaptors for different applications.


  • No-couplant piezoelectric solution (100% dry).
  • Great accuracy (12.7µm-0.0005”) and lateral resolution (up to 1mm-0.040”).
  • Available sensor options:
    - Flexible, low-profile (2mm).
    - Remote inspection with extension pole.
    - Roller wheel.

Software Upgrades

  • Thickness Grid
  • Thickness/Corrosion Mapping

Related Instruments

The following instruments are recommended for this application.


Standard EMAT and DCUT Sensors and Accessories for the most common applications (normal beam, guided waves, angled beam)

If you would like any more information on this system, please contact us, and one of our experts will be in touch.