664 KB0 KB201820222019Hiti, MihaStr. 181-184COBISSID_HOST:2524007ISSN:2591-0442URN:URN:NBN:SI:doc-1P694X89slDruštvo Slovenska sekcija IEEEZbornik mednarodne Elektrotehniške in računalniške konferenceetalonski stroj za siloforce calibration machineforce transducermeasuring amplifiermeasurment uncertaintymerilna negotovostmerilni ojačevalnikipretvornik sileAnaliza vpliva zamenjave merilnih ojačevalnikov na rezultat kalibracije pretvornika sile|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 unitTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaSlovenska sekcija IEEE