Calibration Uncertainty of an External Six-Component Wind Tunnel Balance

Calibration uncertainty estimation of a strain-gage external balance

“…The evolution of the analysis of balance calibration uncertainty at TA-2 and TTP facilities can be seen in [11][12][13][14]. These references present the data reduction employed to predict the aerodynamic forces and moments and associated uncertainties by applying least squares fitting to the calibration data [15,16].…”

“…No experimental investigation about the uncertainty in data to be fitted is done. In [12], the contribution of the load cells readings was considered applying the law of propagation of uncertainties as recommend by international standardization [17], but this information was only included after performing the fitting.…”