Accession Number:

ADD013048

Title:

Universal Microcomputer for Individual Sensors.

Descriptive Note:

Patent, Filed 9 Jun 83, patented 31 Dec 85,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1985-12-31

Pagination or Media Count:

12.0

Abstract:

This invention is an apparatus and method created around a specialized microcomputer attachable to and addressable to each thermister in an array of thermisters used to measure temperature in the sea. The invention provides a number of options so that the same model of microcomputer can be adapted to several different modes of operation and used to monitor a variety of other sensors that have electrical resistance, voltage or current as outputs. Alternate modes of operation for resistive sensors are presented where a number that fixes the measurement as a fraction of the dynamic range of the variable being measured is determined. The system includes the circuits and memory needed to adapt it to any of a variety of sensors measuring physical quantities. The microcomputer contains a counter that can be incremented at several rates, a voltage comparator which can be used to interrupt the counter at a number that represents the measurement, inputoutput buffers for connections with a remote master control unit whereby command instructions and data can be relayed to and from the microcomputer, and a voltage reference source.

Subject Categories:

  • Computer Systems
  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE