Ultrasonic imaging system

Details Ultrasonic imaging system Ultrasonic imaging system

1984-01-20

1985-10-01

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

G01N 2900

Patent

active

045438293

ABSTRACT:
Ultrasonic imaging system with a linear array having several transducer elements of which a respective group of commonly controlled transducer elements forms one beam aperture and to which one transmitting system and one receiving system is allocated. A delay time is digitally set for each transducer element of the beam aperture and triggered by means of a starting pulse, and the echo signals of the transducer elements of the beam aperture are added and phase delayed by the software. In this manner, an ultrasonic imaging system for high ultrasonic frequencies, particularly at least in the order of 30 MHz is achieved in which transmitting and receiving lens can be created independently of one another in the computer by changing the software, while the hardware remains unchanged.

REFERENCES:
patent: 4223560 (1980-09-01), Glenn
patent: 4241608 (1980-12-01), Dees et al.
patent: 4417475 (1983-11-01), Okazaki
patent: 4484477 (1984-11-01), Buxton
W. Gebhard--"Grundlagen, Technik und Anwendung in der Werkstoffpruefung", IzfP--Bericht Nr. 770117-TW, pp. 60 through 65, Saarbruecken 1977.

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