Accession Number:

ADA064728

Title:

Microprocessor Based Data Acquisition and Processing System.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1978-12-01

Pagination or Media Count:

239.0

Abstract:

The Air Force Flight Dynamics Laboratory at Wright-Patterson Air Force Base, Ohio, plans to design a constrained layer damping treatment for aircraft components. This design requires the knowledge of vibration and temperature variations that a component encounters in service. The development of a microprocessor based data acquisition and processing system MIBDAPS to monitor the vibration and temperature variations of a component under test is discussed in this paper. The designed system is capable of acquiring and processing data in real time and generating cumulative damage factor versus frequency and temperature contours. These contours are used in the design of the damping treatment. The system uses an LSI-11M microcomputer as its central processor. The support hardware for this microcomputer includes an analog-to-digital converter, core memory, real time clock, and serial line interface module. The software developed for this system handles the acquisition and processing of data. The real time processing includes the computation of the FFT and power spectrum of the vibration signal and subsequent calculation of the cumulative damage factor versus frequency and temperature contours. The bench model of the designed system was implemented and tested for functional performance. Author

Subject Categories:

  • Computer Programming and Software
  • Computer Hardware

Distribution Statement:

APPROVED FOR PUBLIC RELEASE