Automated Laser Ultrasonic Testing (ALUT) of Hybrid Laser Arc Welds for Pipeline Construction

Girth welds in new pipeline construction have stringent inspection requirements to insure pipeline safety. Current automated ultrasonic inspection testing systems are complex and are limited to post process application. Laser ultrasonics is a noncontact technique that can perform ultrasonic measurements on hot, moving surfaces. The goal of this project is to apply laser ultrasonics for monitoring the integrity of girth welds in real time, using a measurement sensor that is mounted in tandem with the weld head. This project is consolidated with a parallel project on the development of hybrid laser arc welding for girth weld production.


  • English


  • Status: Completed
  • Contract Numbers:


  • Sponsor Organizations:

    Pipeline and Hazardous Materials Safety Administration

    U.S. Department of Transportation
    East Building, 2nd Floor 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Merritt, James

  • Performing Organizations:

    Intelligent Optical Systems, Incorporated (IOS)

    2520 West 237th Street
    Torrance, CA  United States  90505
  • Principal Investigators:

    Klein, Marvin

  • Start Date: 20070801
  • Expected Completion Date: 0
  • Actual Completion Date: 20091222
  • Source Data: RiP Project 35233

Subject/Index Terms

Filing Info

  • Accession Number: 01492464
  • Record Type: Research project
  • Source Agency: Department of Transportation
  • Contract Numbers: DTPH56-07-T-000008
  • Files: RiP
  • Created Date: Sep 10 2013 1:00AM