Accession Number:

ADA285219

Title:

An Economical System for Measuring, Monitoring, and Controlling the Rate of Repetitive Events

Descriptive Note:

Final, Dec 1993-Mar 1994

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE

Personal Author(s):

Report Date:

1994-09-01

Pagination or Media Count:

58.0

Abstract:

An integrated hardwaresoftware system that can economically measure, monitor, and control the frequencies of repetitive events is presented. A user- adjustable counting interval allows high-resolution frequency measurements to be obtained for repetitive events with frequencies that range from tens of hertz to several kilohertz. The flexibility of this system is further enhanced by the inclusion of microprocessor control that allows both frequency values and trends to be determined and displayed. An assortment of digital inputs and outputs is available to interface this system with external devices such as alarms and frequency feedback controllers. Schematic diagrams, circuit descriptions, printed circuit board masks, and a parts lists of the hardware are included. Sample software that can be used to drive the microprocessor is also presented and discussed.

Subject Categories:

  • Electrical and Electronic Equipment
  • Computer Hardware

Distribution Statement:

APPROVED FOR PUBLIC RELEASE