Bubble fraction meter

Abstract

A bubble fraction meter for measuring a bubble fraction of a fluid to be measured, including: an insulator comprising a flow path through which the fluid to be measured flows; a pair of main electrodes disposed at positions facing each other across the flow path in the insulator and configured to measure an electrostatic capacitance of the fluid to be measured in the flow path; a processor including a temperature sensor configured to measure a fluid temperature of the fluid to be measured in the flow path, a pressure sensor configured to measure a pressure of the fluid to be measured in the flow path, and an atmospheric pressure sensor configured to measure an atmospheric pressure, the processor including a fluid relative dielectric constant correction calculation circuit configured to calculate a corrected relative dielectric constant of the fluid to be measured based on the fluid temperature and an absolute fluid pressure which is a value obtained by adding a pressure of the fluid to be measured to the atmospheric pressure.

Dependencies are inferred from the claim text.