Method and apparatus for detecting a defect of an object to be m

Details Method and apparatus for detecting a defect of an object to be m Method and apparatus for detecting a defect of an object to be m

1997-02-25

1999-05-25

Oda, Christine K.

Measuring and testing

Vibration

Resonance, frequency, or amplitude study

73602, G01N 2904

Patent

active

059070986

ABSTRACT:
A method and apparatus for detecting a defect of an object to be measured that has a first section having a first plate part and a second plate part which has a plate surface opposite to a plate surface of the first plate part and is integral with the first plate part or is connected to the first plate part and a second section that is united integrally with the first section or is bonded to the first section. The object to be measured has an intersection part formed between the plate surface of the first and/or second plate part of the first section and the surface of the united part of the second section with the first section, any defect formed in the intersection part being detected. Further, if the first section is a major working section, the life of the object to be detected is detected by detecting deterioration of the first section.

REFERENCES:
patent: 4235110 (1980-11-01), Dau
patent: 5060516 (1991-10-01), Lau
patent: 5125260 (1992-06-01), Hedeen

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