ACCURACY DIAGNOSTIC OF DIGITAL MULTIMETERS’ INDICATIONS


Abstract

Methods of calculating maximum permissible error (MPE) and its two components: multiplicative (PEmul) and additive (PEadd) are described. Principles of accuracy diagnostic of multimeters' indications are explained. Use of calibration results to determine corrective function that allows for reduction of systematic errors is proposed. Presented results of experimental tests prove that calculating uncertainty of measurement results obtained after the correction of systematic error - with use of Type B method - can be based solely on additive component (PEadd).


Keywords

maximum permissible error; calibration; accuracy diagnostic; systematic errors correction

Tabisz R.A.: Walidacja przemysłowych procesów pomiarowych. Monografia. Oficyna Wydawnicza Politechniki Rzeszowskiej, Rzeszów, 2013.

JCGM 200:2008 International vocabulary of metrology.

JCGM 100:2008 Evaluation of Measurement data-Guide to the expression of uncertainty in measurement.


Published : 2016-08-08


Tabisz, R. (2016). ACCURACY DIAGNOSTIC OF DIGITAL MULTIMETERS’ INDICATIONS. Informatyka, Automatyka, Pomiary W Gospodarce I Ochronie Środowiska, 6(3), 36-39. https://doi.org/10.5604/20830157.1212264

Roman Tabisz  rtabisz@prz.edu.pl
Politechnika Rzeszowska, Zakład Metrologii i Systemów Diagnostycznych, Laboratorium Badań i Kalibracji „LABBiKAL”  Poland