An Economical System for Measuring, Monitoring, and Controlling the Rate of Repetitive Events
Abstract
An integrated hardware/software 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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1994
- Accession Number
- ADA285219
Entities
People
- Thomas Kottke
Organizations
- United States Army Research Laboratory