Sensors & Electronics
Macro Property Measurement
Flaw Detection in Layered Metal Structures (178)
Lab Testing of Measurement Method on Layered Metal Samples
Problem: Need to detect flaws in metal materials hidden behind other metal sheets (multi-layer components)
Project Activity Scope (from Technical Overview Chart): Interaction Mechanisms through Measurement & Analysis System Applications
PNNL Solution:
- Pulsed electromagnetic (PEM) fields penetrate deeply into metals creating pulsed eddy currents
- Developed & demonstrated PEM detection of metal flaws indicated by metal conductivity anomalies
- Superior to conventional eddy current inspection (deeper flaw detection & faster inspection)
- US patents (5,777,469; 5,986,452; and 6,014,024) have been awarded for these developments
Capabilities Employed to Meet Client Needs: Flaw detection development based on pulsed electromagnetic interactions (eddy currents) with metals; lab demonstration probe developed; signal processing electronics development; electromechanical test fixture design & fabrication; fabrication of samples with standard flaws for method evaluation; test planning and analysis; reporting of results & test methods.
Selected Links to Related Information:
- Related Examples (Same Project)
- Similar Application Examples (Same or Different Technology)
- Assess Ultrasonic Inspection Reliability (247)
- Crack/Flaw Detection in Metal Parts (53)
- Effective NDE Technology Transfer (252)
- Flaw Detection at Far Side of Weld (250)
- Flaw Detection in Magnetic Materials (106)
- Flaw Distribution in Pressure Vessel Material (248)
- Improved Flaw Detection Method (249)
- Improved Structural Integrity Assessment (246)
- Optimize In-service Inspection Programs (251)
- Real-Time Ultrasonic Inspection System (55)
- RTUIS Technology for Production QC (119)
- Specialized Test Method Development (324)
- Similar Technology Examples (Same or Different Application)
- Related Websites
Contact: Michael Watkins
