Ultrasonic probe and acoustic lens attachment

Details Ultrasonic probe and acoustic lens attachment Ultrasonic probe and acoustic lens attachment

1990-02-13

1991-09-24

Williams, Hezron E.

Measuring and testing

Vibration

By mechanical waves

G01N 2900

Patent

active

050504363

ABSTRACT:
An ultrasonic probe includes an ultrasonic probe body and an acoustic lens attachment detachably fitted on the ultrasonic probe body. The attachment includes an acoustic lens, and the lens is in contact with electrical/acoustic transducer elements formed in the probe body but is partially separated from the probe body to form air gaps. The air gaps constitute escape portions, respectively. The air gaps are defined by parts of acute-angled surfaces of the probe body, obtuse-angled surfaces of connecting portions of the attachment, and tight contact portions of the attachment. The tight contact portions are perfectly in tight contact with the probe body, so that a medium is moved to the escape portions. The medium can be uniformly spread to form a thin medium layer. Bubbles are not formed in the tight contact portions, and the acoustic lens does not locally project. A two-dimensionally uniform acoustic refractive index can be obtained.

REFERENCES:
patent: 4387720 (1983-06-01), Miller
patent: 4794930 (1989-01-01), Machida et al.
patent: 4867169 (1989-09-01), Machida et al.

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