TWO-VIBRATOR TYPE SEARCHING UNIT AND ITS APPLICATION TO ULTRASONIC FLAW DETECTOR

In order to detect flaws located closely near surface in a metal material using a ultrasonic flaw detector, a two-vibrator type searching unit was invented. One of the two vibrators is a transmitter and the other a receiver. This unit can be used to inspect Thermit welded part of rails. Two-vibrator type searching unit is applied to an audigauge type flaw detector for use in rails. The unit can detect big flaws if they exist more than 1 to 5 mm apart from surface. In case of small flaws, they can be detected if their distances from surface are more than 5 mm.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3127232
• Corporate Authors:

  JAPANESE NATIONAL RAILWAYS

  TOKYO,   Japan 
• Authors:
  • Mano, K
• Publication Date: 1962-12

Media Info

• Features: Figures; Photos;
• Pagination: p. 11-13
• Serial:
  • Railway Technical Research Institute, Quarterly Reports
  • Volume: 3
  • Issue Number: 4
  • Publisher: Railway Technical Research Institute/Tetsudo Gijutsu Kenkyujo
  • ISSN: 0033-9008
  • Serial URL: http://www.rtri.or.jp/eng/

Subject/Index Terms

• TRT Terms: Cracking; Defects; Inspection; Inspection cars; Maintenance of way; Nondestructive tests; Rail (Railroads); Railroad tracks; Shelling (Metals); Technology; Ultrasonic tests; Welded rail
• Geographic Terms: Japan
• Old TRIS Terms: Fissures (Rails); Rail inspection; Shelling; Shelling (Rails); Track maintenance equipment
• Subject Areas: Maintenance and Preservation; Railroads;

Filing Info

• Accession Number: 00040510
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 8 1994 12:00AM