Data acquisition system for unsteady aerodynamic investigation.
Authors
Englehardt, Cleveland Duane
Subjects
microprocessor
circulation control rotor
wind tunnel data acquisition
circulation control rotor
wind tunnel data acquisition
Advisors
Schmidt, Louis V.
Date of Issue
1977-06
Date
June 1977
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
This paper describes the design and implementation of a microprocessor-based high-speed digital data acquisition and reduction system suitable for use in time varying signal analysis as encountered in unsteady aerodynamic investigation. A microprocessor, flexible disk drive and an analog-to-digital conversion module were the main components which were integrated to form a 32 channel 12 bit resolution data acquisition system capable of 1000 Hz sampling rate and permanently storing over 250,000 bytes of data on magnetic diskette. Subsequent to the data logging process, the same system was capable of serving as a general purpose computer utilizing the popular BASIC scientific programming language.
The system was qualified for accuracy and functional performance through a series of controlled exercises, and was then applied to an actual investigative task to further determine its utility and value.
Type
Thesis
Description
Series/Report No
Department
Aeronautics
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.