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

045438285

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. Always only one group of the transducer elements on the linear array is active and is connected via transmit switches to the transmitting system, and via receiver switches in series with a wiring arrangement to the receiving system. This facilitates the implementation of an ultrasonic imaging system for high ultrasonic frequencies, particularly in the order of at least 30 MHz, in which the use of a switching matrix in the radiation and receiving system is avoided.

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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