Reconfigurable mosaic annular arrays
| Autor: | Robert Gideon Wodnicki, Charles Gerard Woychik, Glen Thomas, Bill Burdick, Rayette Ann Fisher, Scott Cogan, Barry Bonitz, Lowell Scott Smith, Xuefeng Zhuang, Kai Erik Thomenius, Pierre Khuri-Yakub, Der-Song Lin, Todd Davies |
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| Rok vydání: | 2014 |
| Předmět: |
Beamforming
Acoustics and Ultrasonics Computer science Signal Processing Computer-Assisted Equipment Design RC time constant Image Enhancement Microarray Analysis Equipment Failure Analysis Transducer Image Interpretation Computer-Assisted Electronic engineering Depth of field Laser beam quality Electronics Electrical and Electronic Engineering Center frequency Reduced cost Instrumentation Ultrasonography |
| Zdroj: | IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 61:1086-1100 |
| ISSN: | 0885-3010 |
| DOI: | 10.1109/tuffc.2014.3009 |
| Popis: | Mosaic annular arrays (MAA) based on reconfigurable array (RA) transducer electronics assemblies are presented as a potential solution for future highly integrated ultrasonic transducer subsystems. Advantages of MAAs include excellent beam quality and depth of field resulting from superior elevational focus compared with 1-D electronically scanned arrays, as well as potentially reduced cost, size, and power consumption resulting from the use of a limited number of beamforming channels for processing a large number of subelements. Specific design tradeoffs for these highly integrated arrays are discussed in terms of array specifications for center frequency, element pitch, and electronic switch-on resistance. Large-area RAs essentially function as RC delay lines. Efficient architectures which take into account RC delay effects are presented. Architectures for integration of the transducer and electronics layers of large-area array implementations are reviewed. |
| Databáze: | OpenAIRE |
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