Concept
Ultrasonic transducer
Related publications (90)
Laser Doppler Vibrometer measurements of the 3D pressure field for the estimation of the radiation force produced by an acoustic standing-wave levitator
Acoustic levitation devices use powerful ultrasonic standing waves to levitate objects in mid-air. We have created a system and method to measure the full harmonic content of the acoustic field accurately. Our study revealed that levitated particles alter ...
Elsevier Science Sa2024Optothermal shaping of lamb waves with square and spiral phase fronts
Romain Christophe Rémy Fleury, Janez Rus, Aleksi Antoine Bossart
We introduce a Lamb-wave medium with tunable propagation velocities, which are controlled by a two-dimensional heating pattern produced by a laser beam. We utilized it to demonstrate that waves in an appropriately designed medium can propagate in the form ...
2024Combined Passive and Active Ultrasonic Stress Wave Monitoring of UHPFRC Properties on a Structural Level
Eugen Brühwiler, Numa Joy Bertola, Thomas Schumacher
Ultra-High-Performance Fiber-Reinforced Cementitious Composite (UHPFRC) is becoming popular in designing lightweight and durable structures. UHPFRC structural elements remain crack-free and waterproof under service conditions, significantly improving durab ...
2023