QCG & QW
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Single Crystal tranducers, threaded for use with “Quick Change” shear wave wedges

Features

  • Single crystal angle beam shear wave quick change transducer and wedges
  • Circular lead metaniobate crystal
  • Max operating temperature 50°C / 120°F
  • High temperature options available up to 285°C / 545°F on request
  • Medium damped for medium bandwidth
  • Highly damped option for wide bandwidth available see PQC transducer list
  • Wedges available in refracted longitudinal angles on request

Common applications:

  • Forgings
  • General welds
  • Tube & pipe

Specification

Transducer Models

Product Code Description Frequency (MHz) Crystal Size (mm / inches) Nearfield Length in Steel (mm / inches)
QCG2525 2.25MHz ¼“ QuickChange 2.25 6.4mm / 0.252″ 7.1mm / 0.28″
QCG3725 2.25MHz 3/8″ QuickChange 2.25 9.5mm / 0.374″ 15.7mm / 0.618″
QCG5025 2.25MHz ½” QuickChange 2.25 12.7mm / 0.5″ 28.1mm / 1.106″
QCG2550 5MHz ¼” QuickChange 5 6.4mm / 0.252″ 15.9mm / 0.626″
QCG3750 5MHz 3/8” QuickChange 5 9.5mm / 0.374″ 34.9mm / 1.374″
QCG5050 5MHz ½” QuickChange 5 12.7mm / 0.5″ 62.4mm / 2.457″
QCG2510 10MHz ¼“ QuickChange 10 6.4mm / 0.252″ 31.7mm / 1.248″
QCG3710 10MHz 3/8” QuickChange 10 9.5mm / 0.374″ 69.9mm / 2.752″
QCG5010 10MHz ½” QuickChange 10 12.7mm / 0.5″ 124.8mm / 4.913″

Case Dimensions & Details

Probe Size Width/Diameter (mm / inches) Height (mm / inches) Connector Options Position Options
6.4mm / 0.252″ 12.7mm / 0.5″ 19.05mm / 0.75″ D S Top
9.5mm / 0.374″ 14.5mm / 0.571″ 19.05mm / 0.75″ D S Top
12.7mm / 0.5″ 17.2mm / 0.677″ 19.05mm / 0.75″ D S Top

Wedge Details

Product Code Description Ө wedge Angle in Steel (°) Applicable Probe Diameter Width (mm / inches) Height (mm / inches) Length (mm / inches
QW2545 45° wedge for ¼” QCG probe 45 6.4mm / 0.252″ 12.7mm / 0.5″ 11.5mm / 0.453″ 20.3mm / 0.799″
QW2560 60° wedge for ¼” QCG probe 60 6.4mm / 0.252″ 12.7mm / 0.5″ 12.6mm / 0.496″ 23.5mm / 0.925″
QW2570 70° wedge for ¼” QCG probe 70 6.4mm / 0.252″ 12.7mm / 0.5″ 12.7mm / 0.5″ 26mm / 1.024″
QW3745 45° wedge for 3/8” QCG probe 45 9.5mm / 0.374″ 16mm / 0.63″ 12.7mm / 0.5″ 25.2mm / 0.992″
QW3760 60° wedge for 3/8” QCG probe 60 9.5mm / 0.374″ 16mm / 0.63″ 15mm / 0.591″ 28.5mm / 1.122″
QW3770 70° wedge for 3/8” QCG probe 70 9.5mm / 0.374″ 16mm / 0.63″ 15.5mm / 0.61″ 30.5mm / 1.201″
QW5045 45° wedge for ½” QCG probe 45 12.7mm / 0.5″ 22.2mm / 0.874″ 15.3mm / 0.602″ 28.6mm / 1.126″
QW5060 60° wedge for ½” QCG probe 60 12.7mm / 0.5″ 22.2mm / 0.874″ 18.1mm / 0.713″ 34.4mm / 1.354″
QW5070 70° wedge for ½” QCG probe 70 12.7mm / 0.5″ 22.2mm / 0.874″ 18.6mm / 0.732″ 36.8mm / 1.449″
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