Non-destructive test apparatus and method for a material having a cavity therein
US3960006A · kind A · utility
14Cited by
8References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1973 |
| Grant date | Jun 1, 1976 |
| Priority date | — |
| Expiry date | Dec 3, 1993 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2696
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In order to detect flaws in a material having a cavity, such as a turbine rotor with a central bore, a test apparatus utilizing ultrasonic signals or waves in longitudinal, shear and surface modes, or various combinations thereof, is provided. A source of ultrasonic waves is appropriately mounted for both circumferential and axial sweeps of at least a portion of the bore. Appropriate indexing arrangements are provided to accurately determine the axial and circumferential positions of the source, and hence of any detected flaws.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.