skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Automatic ranging circuit for a digital panel meter

Abstract

This invention relates to a range changing circuit that operates in conjunction with a digital panel meter of fixed sensitivity. The circuit decodes the output of the panel meter and uses that information to change the gain of an input amplifier to the panel meter in order to insure that the maximum number of significant figures is always displayed in the meter. The circuit monitors five conditions in the meter and responds to any of four combinations of these conditions by means of logic elements to carry out the function of the circuit.

Inventors:
 [1];  [1]
  1. Oak Ridge, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
862550
Patent Number(s):
3958178
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
automatic; ranging; circuit; digital; panel; meter; relates; range; changing; operates; conjunction; fixed; sensitivity; decodes; output; information; change; input; amplifier; insure; maximum; significant; figures; displayed; monitors; five; conditions; responds; combinations; means; logic; elements; carry; function; panel meter; logic elements; digital panel; /324/

Citation Formats

Mueller, Theodore R, and Ross, Harley H. Automatic ranging circuit for a digital panel meter. United States: N. p., 1976. Web.
Mueller, Theodore R, & Ross, Harley H. Automatic ranging circuit for a digital panel meter. United States.
Mueller, Theodore R, and Ross, Harley H. Thu . "Automatic ranging circuit for a digital panel meter". United States. https://www.osti.gov/servlets/purl/862550.
@article{osti_862550,
title = {Automatic ranging circuit for a digital panel meter},
author = {Mueller, Theodore R and Ross, Harley H},
abstractNote = {This invention relates to a range changing circuit that operates in conjunction with a digital panel meter of fixed sensitivity. The circuit decodes the output of the panel meter and uses that information to change the gain of an input amplifier to the panel meter in order to insure that the maximum number of significant figures is always displayed in the meter. The circuit monitors five conditions in the meter and responds to any of four combinations of these conditions by means of logic elements to carry out the function of the circuit.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {1}
}

Patent:

Save / Share: