TECHNICAL DATA
8
69
IFC 050
www.krohne.com
09/2016 - 4002184003 - MA IFC 050 R03 en
8.1 Measuring principle
An electrically conductive fluid flows inside an electrically insulated pipe through a magnetic
field. This magnetic field is generated by a current, flowing through a pair of field coils.
Inside of the fluid, a voltage U is generated:
U = v * k * B * D
U = v * k * B * D
U = v * k * B * D
U = v * k * B * D
in which:
v = mean flow velocity
k = factor correcting for geometry
B = magnetic field strength
D = inner diameter of flowmeter
The signal voltage U is picked off by electrodes and is proportional to the mean flow velocity v
and thus the flow rate Q. A signal converter is used to amplify the signal voltage, filter it and
convert it into signals for totalizing, recording and output processing.
Figure 8-1: Measuring principle
1
Field coils
2
Magnetic field
3
Electrodes
4
Induced voltage (proportional to flow velocity)
