High-Temp TOFD: Time-of-Flight Diffraction

Description:

The High-Temperature TOFD transducer acts like a conventional TOFD transducer but designed for temperatures up to 200°C (392°F). Time-of-flight diffraction is a method used to determine the size of mid-wall and I.D. cracks in metallic welds. It requires highly-damped, broadband transducers and wedges that generate refracted longitudinal (L) waves. The high-temp TOFD transducers come standard with a straight-mounted Microdot connector. The TOFD wedge is also designed for use up to 200°C (392°F) and includes two coupling irrigation ports and gimbal-mounting holes.

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  • Features
    Temperature & Testing Data
    This data is calculated with the transducer, wedge, and asset all at 150°C (peek data) or 200°C (celazole data). During actual inspections, there will be a temperature gradient from the asset up to the transducer.

    High-Temp Wedges – Celazole U-60  
    Up to 200°C (392°F)

  • Specifications

    And their wedges generate shear (transverse) waves at the specified angle in a given test material to detect flaws that cannot be detected by a straight-beam transducer. Typical applications include weld inspection, tube and pipe, shafts, turbine blades, and wheel rims. Shear waves are produced by refracting a longitudinal wave in a precision machined acrylic wedge that also minimizes wedge noise.






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