Analiza vpliva zamenjave merilnih ojačevalnikov na rezultat kalibracije pretvornika sile

slovenski

2019

etalonski stroj za silo   merilna negotovost   merilni ojačevalniki   pretvornik sile

Slovenska sekcija IEEE
(Obvezni izvod spletne publikacije)

The paper presents the influence of different measuring amplifiers on the calibration result of the same force transducer. The calibrations of a 1000 N force transducer of type HBM Z30A were performed on a 1000 N deadweight force calibration machine of ZAG which offers 0,01 % expanded calibration uncertainty and force generation repeatability better than 0,005 %. For the analysis, high precision measuring amplifiers of following types were employed: carrier frequency 225 Hz (HBM DMP41, HBM ML38B and HBM DK38), carrier frequency 4800 Hz (HBM ML55B) and DC excitation type (HBM ML10B). Results are presented for the calibration of transducer-amplifier measuring chain, and for additional evaluation of contribution of replacing the measuring amplifier by calibration of each measuring amplifier using an HBM K3608 calibrator unit.

14.06.2023