Acoustic emission locator of defects in a closed structure

Details Acoustic emission locator of defects in a closed structure Acoustic emission locator of defects in a closed structure

1981-10-22

1984-09-25

Gill, James J.

Measuring and testing

Vibration

By mechanical waves

G01N 2904

Patent

active

044729715

ABSTRACT:
The present invention allows the position of a defect to be located when it emits acoustic waves into a closed structure. The waves travel around closed routes in a section of the structure.
To this end, it comprises at least three acoustic sensors (22-24), uniformly distributed on the surface of the section of the structure monitored, connected to logic (26, 27) for encoding the order of arrival of the signals detected. Control means (16, 20, 35) for controlling display means and means (19) for controlling the writing means of the latter, which is preferably a conventional dual-trace oscilloscope are described. The image of the section monitored is traced by two beams rotating in opposite directions, only one of which is illuminated for a brief instant at the moment of detection of the acoustic emission, as it passes the image point identifying the defect.

REFERENCES:
patent: 3052115 (1962-09-01), Renaut et al.
patent: 3985024 (1976-10-01), Horak
patent: 4009463 (1977-02-01), Vercellotti
patent: 4033179 (1977-07-01), Romrell

Affiliated with

Also associated with

Rating

Acoustic emission locator of defects in a closed structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acoustic emission locator of defects in a closed structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic emission locator of defects in a closed structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1765814