학술논문

Improvement of the Measurement Accuracy of Resistance Standard with UNI-T UT 805 and UT 803 Multimeters
Document Type
Conference
Source
2019 International Conference on Electrical Drives & Power Electronics (EDPE) Electrical Drives & Power Electronics (EDPE), 2019 International Conference on. :137-142 Sep, 2019
Subject
Power, Energy and Industry Applications
Robotics and Control Systems
Electrical resistance measurement
Measurement uncertainty
Current measurement
Resistance
Standards
Ammeters
Voltage measurement
more accurate measurement
resistance standard
multimeter
indirect measurement
relative measurement error
least squares method
Language
ISSN
1339-3944
Abstract
Article deals with a possibility of more accurate measurement of the resistance standard with a nominal value that is 20 to 60 times smaller than the smallest ohmic range of the multimeter. Compared to direct or indirect one-time measurement, the indirect measurement method using multiple measurements by multiple multimeters is much more accurate. It makes it possible to achieve a relative measurement error in the range of one hundredth to a thousandth of one percent, which significantly exceeds the possibilities of a one-time measurement with a conventional multimeter. This procedure can also be used in practice to measure other resistors, not only resistance standards, without any need of special and expensive measuring apparatus.