The invention discloses an apparatus for measuring the
wetting condition of the surface of a
metal in an oil / water
double phase flow
system, and a method thereof, and belongs to the field of the measurement of the oil / water
wetting condition of the surface of the
metal. The apparatus comprises a
liquid storage tank, a volume flow meter, a
circulating pump, a flow velocity adjusting valve, a disc water separator, a sample
cell, a
test sample, miniature
conductivity sensors, and a
signal processing and displaying circuit. The apparatus utilizes the miniature
conductivity sensors inlayed in the surface of the
test sample to measure the
conductivity of a liquid film on the surface of the
metal nearby probes, and the measurement result can reflect the
wetting condition of the surface of the metal nearby the probes because of the substantial difference of the conductivities of oil and water. The
signal obtained through measuring by the miniature conductivity sensors is displayed by light emitting diodes to obtain the percentage of the water wetting (or oil wetting) of the surface of the
test sample. The apparatus and the method can realize the measurement the wetting condition of the surface of the metal in the oil / water
double phase fluid of different components at different flow velocities.