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2D airborne ultrasound piezotransducer arrays for corneal imaging
2D airborne ultrasound piezotransducer arrays for corneal imaging
- Source :
- 2019 IEEE International Ultrasonics Symposium (IUS).
- Publication Year :
- 2019
- Publisher :
- IEEE, 2019.
-
Abstract
- Non-contact ultrasound applications are raising more and more interests. However, very few applications have been reported, for now in medical applications. In this work, compact airborne piezotransducers have been designed, built and characterized for a novel medical application: contactless corneal imaging. The emission transducer is cylindrical with a 5.5 mm diameter and the reception transducer is a 2D array of 4x16 elements. A specific emission-reception electronic is also designed for these transducers to drive their high electric impedances that are larger than kiloOhms. The measured parameters - directivity, sensitivity and frequency bandwidth – of both transducers respond well to the needs of corneal imaging application.
Details
- Database :
- OpenAIRE
- Journal :
- 2019 IEEE International Ultrasonics Symposium (IUS)
- Accession number :
- edsair.doi...........c8e9e68966f12e7cb26b363c27908aaf
- Full Text :
- https://doi.org/10.1109/ultsym.2019.8926011