TY - JOUR
N2 - Is this article simulation of statistical measurements is performed on the basis of which the analysis of the standard deviation of the obtained results is carried out. It is shown that the standard deviation is minimum and independent from measurement duration while an object is in the state of equilibrium. For objects in a stationary non-equilibrium state the standard deviation depends on the duration measurements and the parameters of the state. The influence of these factors on the standard deviation is assessed with equation which includes the relaxation time. The value of the relaxation time is determined by approximating the energy spectrum of the studied signals. The analysis of energy spectra showed that the spectrum of white noise is inherent in objects in equilibrium; the flicker component of the spectrum occurs when the state of the object deviates from equilibrium.
L1 - http://rhis.czasopisma.pan.pl/Content/127357/PDF-MASTER/art02_int.pdf
L2 - http://rhis.czasopisma.pan.pl/Content/127357
PY - 2023
IS - No 1
EP - 30
DO - 10.24425/mms.2023.144403
KW - standard deviation
KW - measurement
KW - relaxation time
KW - energy spectrum
A1 - Przystupa, Krzysztof
A1 - Kolodiy, Zenoviy
A1 - Yatsyshyn, Svyatoslav
A1 - Majewski, Jacek
A1 - Khoma, Yuriy
A1 - Petrovska, Iryna
A1 - Lasarenko, Serhiy
A1 - Hut, Taras
PB - Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation
VL - vol. 30
DA - 2023.05.29
T1 - Standard deviation in the simulation of statistical measurements
SP - 17
UR - http://rhis.czasopisma.pan.pl/dlibra/publication/edition/127357
T2 - Metrology and Measurement Systems
ER -