THE ULTRASONIC P-SCAN: DOCUMENTS FLAWS IN WELDING SEAMS

The Danish Welding Center has developed ultrasonic equipment for checking welding seams where the operator reads the results directly. The advanced P-scan equipment will soon be shown for the first time at the offshore exhibit in Houston, Texas. A transducer, controlled by a microcomputer, sends ultrasonic waves into the material and simultaneously registers flaws on a TV screen as a projection picture and on a magnetic tape. The area being examined is shown on the screen both as a vertical and horizontal projection picture. The operator can set the variable sensitivity level according to the control directions being used. The examination method covers 100% of the examined area and a hard copy can be obtained at any time as documentation both of the picture on the screen and from the magnetic tape. If any doubt appears about a flaw, the sensitivity level can be moved up or down with no need to repeat the examination. From a O-point on the welded surface, the operator can find the exact location and give the size of the flaw in millimeters. A hard copy of the screen picture shows the welder exactly where to repair.

  • Corporate Authors:

    Boersen Magazines

    19 Montergade
    DK1116 Copenhagen,   Denmark 
  • Publication Date: 1979-3

Media Info

  • Pagination: p. 14-15
  • Serial:
    • Scanshore
    • Volume: 3
    • Issue Number: 2
    • Publisher: Boersen Magazines

Subject/Index Terms

Filing Info

  • Accession Number: 00194553
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 13 1979 12:00AM