Panametrics-NDT Ultrasonic Transducers

Two angled elements create a V-shaped sound path in the test material. This "Pseudo-Focus" enhances resolution in the focal zone.

A dual element transducer consists of two crystal elements housed in the same case, separated by an acoustic barrier. One element transmits lon gitudinal waves, and the other element acts as a receiver.

Advantages:

• Improves near surface resolution
• Eliminates delay line multiples for high temperature applications
• Couples well on rough or curved surfaces
• Reduces direct back-scattering noise in coarse grained or scattering materials
• Combines penetration capabilities of a lower frequency single element transducer with the near surface resolution capabilities of a higher frequency single element transducer
• Can be contoured to conform to curved parts

Applications:

• Remaining wall thickness measurement
• Corrosion/erosion monitoring
• Weld overlay and cladding bond/disbond inspection
• Detection of porosity, inclusions, cracks, and laminations in castings and forgings
• Crack detection in bolts or other cylindrical objects
• Maximum temperature capability is 800°F (425°C) for 5.0 MHz and below; 350°F (175°C) for 7.5 MHz and 10 MHz. Recommended duty cycle for surface temperatures from 200°F (90°C) to 800°F (425°C) is ten seconds maximum contact followed by a minimum of one minute air cooling (does not apply to Miniature Tip Dual)

Flush Case Duals

• Metal wear ring extends transducer life
• Wear indicator references when transducer face needs resurfacing
• Knurled, 303 stainless steel case
• Replaceable cable design (special dual cables with strain relief available)
  

Flush Case Dual Cables

Composite Element Flush Case Duals

Fingertip Duals

• Knurled case, except the 0.25" (6 mm) element size
• High-strength flexible 6' (1.8 m) potted cable (fits BNC or Large Lemo® 1 connectors)
  

Miniature Tip Dual

• Provides better coupling on curved surfaces
• Low profile allows for better access in areas of limited space
• Maximum temperature capability 122°F (50°C)
  

Miniature Tip Dual Cables

• Replaceable cable for all flaw detectors
  

Extended Range Duals

• Shallow roof angles provide greater sensitivity to deep flaws, back walls, and other reflectors, 0.75" (19 mm) and beyond in steel
• Can be used for high temperature measurements when delay lines are unacceptable
• High-strength flexible 6' (1.8 m) potted cable with BNC connectors
  

Fingertip and Extended Range Dual

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