Bolt-clamped Langevin ultrasound transducers are typically paired with horns, which require
precise and costly manufacturing. We explore alternative clamping mechanisms aimed at …

Lamb wave excitation in sheet materials is possible using non-contact, non-destructive
evaluation methods such as air-coupled transducers, pulsed Laser excitation and electro …

Lamb waves are widely used in non destructive evaluation (NDE) applications for inspection
of sheet materials or pipes. However, simulation models of wave excitation focus on …

Guided waves are often used for non-destructive testing (NDT) of thin steel sheets by
measuring the attenuation at a defect or identifying a reflection from a defect. However …

Air-coupled ultrasonic non-destructive testing (NDT) enables the inspection of composite
materials for defects. In this paper, we investigate non-contact defect detection based on …

Waveguided air-coupled ultrasonic phased arrays offer grating-lobe-free beam forming for
many applications such as obstacle detection, non-destructive testing, flow metering or …

Acoustic waveguides offer grating lobe-free beam-forming for air-coupled phased arrays.
Due to the separation of the transducers aperture and the radiating aperture, the output of …

Waveguides for ultrasonic air-coupled phased arrays offer grating lobe-free beamforming.
However, the interaction between the waveguide and the transducer is not lossless as …