278 Vibrating Densitometer

Calculation for corrected density

This standard calculates the density from the measured frequency and densitometer constants obtained from calibration.



The corrected density is calculated as follows:

UGC_278

Symbol Description Units
ρi Uncorrected density kg/m3
τ Time period µs
K0 Obtained from the calibration certificate -
K1 Obtained from the calibration certificate -
K2 Obtained from the calibration certificate -
ρc Corrected density kg/m3
KP1 Obtained from the calibration certificate -
KP2 Obtained from the calibration certificate -
KP3 Obtained from the calibration certificate -
KT1 Obtained from the calibration certificate -
KT2 Obtained from the calibration certificate -
KT3 Obtained from the calibration certificate -
P Upstream pressure bar g
pstd Standard pressure bar g
T Upstream temperature °C
Tstd Standard temperature °C

References