Accession Number:

AD0728812

Title:

Instrumentation and Techniques for Infrared Nondestructive Testing Applications.

Descriptive Note:

Technical rept.,

Corporate Author:

ARMY WEAPONS COMMAND ROCK ISLAND ILL RESEARCH DEVELOPMENT AND ENGINEERING DIRECTORATE

Report Date:

1971-06-01

Pagination or Media Count:

27.0

Abstract:

Infrared nondestructive testing IRNDT techniques and instrumentation were used to successfully detect surface and near-surface flaws in circular and flat aluminum samples. A continuous wave CO2 laser was employed to inject large amounts of thermal energy into appropriate specimens. The surface of each specimen was scanned with an infrared radiometer to detect surface thermal anomalies that are indicative of surface and near-surface flaws. In addition, a miniaturized, high-speed, scanning infrared radiometer was designed and constructed for the inspection of the interior surfaces of large gun tubes and recoil cylinders 75mm or larger. The instrumentation and the techniques developed are anticipated to have wide application to many problems, such as the detection of cracks, voids, and inclusions in gun tubes, projectiles, recoil mechanisms, and aircraft components. Author

Subject Categories:

  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE