Title :
Precision resistors: a review of the techniques of measurement, advantages, disadvantages, and results
Author :
Braudaway, David W.
Author_Institution :
Sandia Nat. Labs., Sandia Park, NM, USA
fDate :
10/1/1999 12:00:00 AM
Abstract :
The characteristics of the principal resistance measuring systems developed over the last two centuries are reviewed, Also reviewed is their application to measurement of resistance from μΩ to MΩ. Included in the review are potentiometer systems and their adaptation to computer operation, the Wheatstone bridge, the enhanced Kelvin double-bridge and the current-comparator in both manual and computer operated forms. Methods of establishing ratio from the base 1 Ω reference value throughout the range are discussed. Uncertainties attainable at the highest levels of precision are presented
Keywords :
bridge circuits; calibration; current comparators; electric resistance measurement; measurement standards; measurement uncertainty; potentiometers; resistors; reviews; 100 muohm to 100 Mohm; Wheatstone bridge; achievable uncertainties; calibration; computer operation adaptation; current-comparator; enhanced Kelvin double-bridge; measurement techniques; potentiometer systems; precision resistors; resistance measuring systems; series-parallel resistors; standards; Bridge circuits; Current measurement; Electrical resistance measurement; Equations; Instruments; Kelvin; Measurement standards; Potentiometers; Resistors; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
