Title :
High frequency ultrasonic scanning system
Author :
Hatfield, J V ; Armitage, A.D.
Author_Institution :
Dept. of Electr. Eng. & Electron., Univ. of Manchester Inst. of Sci. & Technol., UK
Abstract :
Progress towards a high resolution, high frequency, hand-held, ultrasonic scanner is reported. For acceptable image reconstruction, signal quantisation frequency must be of the order of eight times the ultrasonic centre frequency. For ultrasound with centre frequencies in excess of 20 MHz the design problems for hand held devices are formidable. To meet the demanding sampling rate criteria, an undersampling approach is presented. The associated hardware is described and preliminary results are also presented
Keywords :
application specific integrated circuits; biomedical electronics; biomedical equipment; biomedical ultrasonics; ultrasonic equipment; ultrasonic imaging; ASIC development; HF ultrasonic scanning system; hand-held ultrasonic scanner; high frequency US scanning system; high resolution; image reconstruction; sampling rate criteria; signal quantisation frequency; Biomedical transducers; Focusing; Frequency; Hardware; Image sampling; Phased arrays; Sampling methods; Ultrasonic imaging; Ultrasonic transducer arrays; Ultrasonic transducers;
Conference_Titel :
Circuits and Systems, 1995., Proceedings., Proceedings of the 38th Midwest Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-2972-4
DOI :
10.1109/MWSCAS.1995.510304
