Measuring and testing – Vibration – By mechanical waves
Patent
1977-12-21
1980-03-25
Ciarlante, Anthony V.
Measuring and testing
Vibration
By mechanical waves
G01N 2904
Patent
active
041944003
ABSTRACT:
The inspection of a portion of an internal member of an assembled article, unavailable for direct line inspection, for example portions of the rotor of a gas turbine engine, is accomplished through the use of an ultrasonic probe inserted through an access port of the article toward a surface of the member to be inspected. As a result of predetermined positioning of a transducer in the operating head of the probe to bounce an ultrasonic signal from an internal boundary toward the portion to be inspected and the comparison between predetermined and received signals, along with an analysis of the comparison, determines whether a defect is present in the member.
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patent: 3929005 (1975-12-01), Parkinson et al.
patent: 4030344 (1977-06-01), Northeved et al.
patent: 4041774 (1977-08-01), Morris et al.
Ciarlante Anthony V.
General Electric Company
Lawrence Derek P.
Sachs Lee H.
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