Method and apparatus for ultrasonic examination

Details Method and apparatus for ultrasonic examination Method and apparatus for ultrasonic examination

1973-03-08

1976-02-24

Queisser, Richard C.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

G01N 2904

Patent

active

039396975

ABSTRACT:
Method and apparatus are disclosed in which it is possible by means of ultrasonic examination according to the pulse echo method to obtain an indication, or a recording of images, of internal inhomogeneities in otherwise homogeneous bodies, corresponding substantially to the images obtained by producing a normal radiographic film of the body. To obtain this an ultrasonic angle probe is moved across the surface of the body and the echo signals are used to produce punctiform markings on a recording surface in such a way that (a) the markings are effected along a moving axis of indication, (b) the displacement of a reference point on the axis of indication follows the displacement of the sound emission point of the probe, (c) the direction of the axis of indication follows the direction of the projection of the sound path on the surface of the body, and (d) the distance from the reference point to each marking is proportional to the echo time of the corresponding ultrasonic pulse. Various methods of recording, including remote recording, are described.

REFERENCES:
patent: 2836059 (1958-05-01), Beaujard et al.
patent: 3518697 (1970-06-01), Martens
patent: 3555888 (1971-01-01), Brown
patent: 3688564 (1972-09-01), McDicken
D. Sproule, An Ultrasonic Imaging System for Flaw Detection Ultrasonics for Industry, 1969 conference papers, London, England, 7-8 Oct. 1969, S01200014.

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