POROSIMETER AND METHODS OF ASSESSING POROSITY

摘要

A porosimeter comprises a gas supply, a gas pressure regulator (20) for the gas supply, a sample holder (32) having an inlet and an outlet, said inlet being connected to the gas pressure regulator, a gas pressure sensor (28) connected to the gas pressure regulator for measuring the pressure of a gas supplied to the sample holder, and a gas flow sensor (29) wherein the gas flow sensor is disposed to measure the gas flow between said gas pressure regulator and said sample holder. Both pressure and flow-rate readings are taken directly from the respective sensors to an automatic recorder (30) which draws mechanically the output in the form of a graph, or may feed them to, for example, an integrating computer.