Many UT applications require a specialty UT couplant. For difficult inspections that require high acoustic impedance, shear wave, reduced surface noise, extreme temperature range or extended service life for sensors, we have the right couplant. High Impedance Couplant: A high impedance couplant typically has an acoustic impedance above 3.5 M Rayls. Water based couplants typically have […]
non-destructive testing
Solving issues with wedge and part coupling failure in phased array inspections
During phased array testing, element dropout can be a problem. Common causes include dead elements in the transducer or a failure of the wedge-to-transducer or wedge-to-inspection-part coupling. Let’s look at each of these coupling failures in detail before offering some solutions for each of these PA testing issues. Wedge-to-transducer coupling failure is often partial and […]
New Fluids for NDT can eliminate fire, smoke and residue
Echo Ultrasonics has recently become the exclusive distributor of SpectrumGlide AUT-NDT Fluid Couplant in the U.S. and Canada. SpectrumGlide, developed by Eclipse Scientific, has a viscosity formulated to reduce runoff and provide longer dwell time at temperatures from -50° F to 730° F (-45° C to 387° C). The addition of SpectrumGlide gives Echo Ultrasonics […]
