Verfahren und Vorrichtung zur Messung des Gehaltes an Verunreinigung einer Fluessigkeit

摘要

The invention relates to the measurement of the amount of impurity in a liquid. The invention is particularly directed to the measurement of the amount of free water in kerosene. Liquid is caused to flow through a filtration cell adapted to retain the impurity. The dielectric constant of the liquid is measured upstream and downstream of the filtration cell and the two measurements of dielectric constant are compared to give an indication of the level of said impurity in the liquid.