Accession Number : ADA186340

Title :   Through-Transmission/Pulse-Echo Ultrasonic Equipment Evaluation.

Descriptive Note : Final rept. 27 Sep 86-26 Sep 87,

Corporate Author : NONDESTRUCTIVE TESTING INFORMATION ANALYSIS CENTER SAN ANTONIO TX

Personal Author(s) : Kwun, Hegeon

PDF Url : ADA186340

Report Date : 26 Sep 1987

Pagination or Media Count : 66

Abstract : A literature search was conducted to identify commercially available ultrasonic equipment for nondestructive inspection of bonded structures used in advanced high performance aircraft for flaws such as delaminations, debonds, and impact damage. More than fifty instruments were identified from the search. The majority (approximately 20 percent) of the instruments are based on other techniques such as resonance, acousto-ultrasonic, and so-called shadow techniques. Approximately forty instruments were evaluated, based on the data available from the literature, for their capabilities and limitations. A trend toward the digital, automatic, and computer-controlled instruments was observed. The majority of the commercial instruments are microprocessor-controlled with interfaces for communication with other devices such as an external computer, a printer, a recorder, or a video display. Also, the majority of the instruments are modular in construction to facilitate maintenance and repair. In addition, almost all instruments are equipped with visual and/or audible alarms.

Descriptors :   *BONDED JOINTS, *INSPECTION, *LAMINATES, *LITERATURE SURVEYS, *NONDESTRUCTIVE TESTING, *SHADOWS, *TELEVISION DISPLAY SYSTEMS, *ULTRASONICS, AIRCRAFT, COMPUTERS, DAMAGE, EXTERNAL, HEARING, HIGH RATE, IMPACT, PERFORMANCE(ENGINEERING), PRINTING EQUIPMENT, REPAIR, WARNING SYSTEMS

Subject Categories : Test Facilities, Equipment and Methods
      Acoustics
      Information Science

Distribution Statement : APPROVED FOR PUBLIC RELEASE