Phased array calibration for geometry and aberration correction
US10739316B2 · kind B2 · utility
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Key dates
| Filing date | Dec 11, 2017 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | Nov 27, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00725
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Various approaches for calibrating the geometry of an ultrasound transducer having multiple transducer elements include providing an acoustic reflector spanning an area traversing by multiple beam paths of ultrasound waves transmitted from all (or at least some) transducer elements to a focal zone; causing the transducer elements to transmit the ultrasound waves to the focal zone; measuring reflections of the ultrasound waves off the acoustic reflector; and based at least in part on the measured reflections, determining optimal geometric parameters associated with the transducer elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.