This paper discusses some developments in utilizing automation of a Direct Current Comparator based resistance measurement system [1] to improve the working specification of long scale Digital Multimeters and Multi-Function Calibrators Resistance Functions. With the use of automation in the Direct Current Comparator based system, minimal user intervention is required to perform a complete traceable characterization for the resistance functions of these devices that will allow short term specifications be applied with long term type calibration. It now becomes practical to utilize frequent complete characterization of the resistance functions in both Long Scale Digital Multimeters, and Multifunction Calibrators. This frequent calibration cycle enables the use of these standards as transfer devices and operate them beyond the manufacturer's specification.
展开▼
