AN INTERACTIVE/GRAPHICS GENERAL-PURPOSE NDE LABORATORY TOOL

A minicomputer-based laboratory test system at Sandia Laboratories, which acts interactively to control experiments and to apply graphic display techniques to the acquired data, is described. A short description of the hardware is included to emphasize its flexibility and general application in the nondestructive evaluation laboratory. Three examples of data acquisition and analysis are presented to illustrate the interactive features of the system. The first example is an infrared experiment to determine the temperature distribution across a hybrid microcircuit unit during operation. This example illustrates the acquisition of slowly varying analog data and the control of motion directly from the peripheral control panel. The display features include contour plotting and use of the cursor to control position. The second example is a pulse-echo ultrasonic test which illustrates the acquisition of data at fast speeds and after-the-fact displays of the data for evaluation. The third example is an acoustic emission monitoring experiment and illustrates fast data acquisition and fast real-time data display. The data in this final example are used to demonstrate the use of the software package to do a complex math analysis (a fast Fourier transform) on a nonreal-time basis as an aid to analysis.

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 1431-37
  • Serial:
    • Volume: 63
    • Issue Number: 10

Subject/Index Terms

Filing Info

  • Accession Number: 00127151
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 14 1976 12:00AM