Boresonic testing utilizing multi-channel C-scan imaging in real time
- Northeast Inspection Services, Inc., Schenectady, NY (United States)
Boreside nondestructive inspection techniques capable of detecting small, yet potentially dangerous flaws in turbine/generator rotors have been developed and utilized for several years. Test methods have ranged from simple hand scanning to very complex computer driven data acquisition systems. Under the direction of Northeast Inspection Services, Inc., an automated computer controlled ultrasonic recording apparatus (ACCURA) system has been developed, evaluated by EPRI, and utilized in the field to perform boresonic tests. The system provides real time multi-channel C-scan imaging of ultrasonic reflectors. Numerical data table files are stored in ASCII format for use in engineering analyses for flaw evaluation and lifetime prediction. A number of applications ranging from turbine rotor tests for detection of near bore indications to peripheral circumferential crack detection in generator rotors are described to illustrate the versatility of the system. The sensitivity and detection reliability of the system are also discussed.
- OSTI ID:
- 82740
- Report Number(s):
- CONF-941007--; ISBN 0-7918-1382-7
- Country of Publication:
- United States
- Language:
- English
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