EDDY CURRENT AND ULTRASONIC TECHNIQUES FOR INSPECTION OF LARGE PARTS

AN AUTOMATIC EDDY CURRENT SCANNING AND RECORDING SYSTEM IS DESCRIBED. THE SYSTEM UTILIZES COMMERCIALLY AVAILABLE SCANNING, RECORDING, AND EDDY CURRENT EQUIPMENT. THE EDDY CURRENT COILS USED ARE HOMEMADE. THE SYSTEM IS CAPABLE OF INSEPCTING LARGE PARTS (26 BY 10 FT) IN APPRIXIMATELY 50 PER CENT LESS TIME THAN CONVENTIONAL PENETRANT METHODS. IT HAS ADDITIONAL ADVANTAGES IN THAT NO ETCHING OR EXCESSIVE CLEANING IS REQUIRED, THERE IS A DISCONTINUITY SIZE DISCRIMINATION CAPABILITY, AND A PERMANENT RECORD IS PROVIDED. A TECHNIQUE FOR MEASURING THE LENGTH AND DEPTH OF DISCONTINUITIES WITH A ROTATING EDDY CURRENT PROBE IS DISCUSSED. A BRIEF DISCUSSION OF AUTOMATED SURFACE INSPECTION USING ULTRASONIC SURFACE WAVES IS ALSO INCLUDED. /JM/

• Supplemental Notes:
  • Vol 2, No 1, PP 65-80, 9 FIG, 15 REF
• Authors:
  • Musil, F J
• Publication Date: 1967-3

Media Info

• Serial:
  • Journal of Materials
  • Publisher: American Society for Testing and Materials (ASTM)

Subject/Index Terms

• TRT Terms: Eddy currents; Inspection; Nondestructive tests; Parts; Recording; Scanners; Surfaces; Ultrasonics
• Old TRIS Terms: Scanning
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00216658
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 9 1994 12:00AM