Vector magnetometry and lightwave defect imaging sensor technologies for internal pipe inspection systems. Phase 1 and 2 feasibility study, conceptual design, and prototype development. Final report, March 1991-July 1993
Technical Report
·
OSTI ID:6962961
The Gas Research Institute (GRI) has been sponsoring the development of a vehicle and sensors for an integrated nondestructive internal inspection system for natural gas distribution pipes. Arthur D. Little has developed two sensor technologies, Vector Magnetometry (VM) and Lightwave Defect Imaging (LDI) for the system. The Vector Magnetometry sensor utilizes multiple arrays of miniature detection coils (fluxgate magnetometer elements); a three-axis array measures both the amplitude and phase of the magnetic leakage field that occurs in the vicinity of pipe wall defects. This technology is applicable to both cast iron and steel pipe.
- Research Organization:
- Little (Arthur D.), Inc., Cambridge, MA (United States)
- OSTI ID:
- 6962961
- Report Number(s):
- PB-94-194198/XAB; ADL-66163; CNN: GRI-5089-271-2093
- Country of Publication:
- United States
- Language:
- English
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