International Workshop on Medical Ultrasound Tomography

Session

Session 7: Ultrasound transducer

Nov 2, 2017, 1:20 PM

Conveners

Session 7: Ultrasound transducer

• Hartmut Gemmeke (KIT)
• Philippe Lasaygues (Aix Marseille Univ, CNRS, Centrale Marseille, Laboratory of Mechanics and Acoustics, Marseille, France)

20. Latest developments in ultrasound transducer technology and future directions

Nicolaas de Jong (Technical University of Delft)

11/2/17, 1:20 PM

Oral

61. Technologies for Piezoceramic Composites used for Ultrasonic Transducers

Holger Neubert (Fraunhofer IKTS Dresden)

11/2/17, 2:00 PM

Main Track

Oral

Piezoelectric ultrasonic transducers are widely used in many fields, such as medical ultrasonic, nondestructive testing and structural health monitoring. The limits of piezoelectric bulk ceramics in high electromechanical coupling, broad bandwidth, good acoustic impedance matching and high resolution of acoustically separated elements lead to attention on piezoelectric 1-3 composites with...

58. Dice-and-fill single element octagon transducers for next generation 3D USCT

Michael Zapf (Karlsruhe Institute of Technology)

11/2/17, 2:20 PM

Main Track

Oral

At KIT a 3D USCT system is under development. The system is optimized for SAFT imaging and has a multistatic setup of 2041 ultrasound transducers with approx. 1MHz 3dB bandwidth and 36° 3dB opening angle for 2.5MHz. The USCT groups transducers in a semi-elliposoidal aperture surrounding a ROI of 10x10x10cm$^3$. To increase the ROI for a next USCT generation, the opening angle of a future...