Patent ID: 9366614
Filing Date: 2016-06-14
CPC Classification: G01N

Claim Text:
1. A porosity measuring device comprising: a magnetic field generating section; a dispersoid measuring section configured to measure movement of a dispersoid dispersed in a dispersion medium in a state where a magnetic field is generated by the magnetic field generating section; and an operating section configured to obtain a porosity of the dispersoid on the basis of a measurement result of the dispersoid measuring section, wherein the operating section obtains a magnetophoretic velocity of the dispersoid from the measurement result of the dispersoid measuring section, obtains a volume susceptibility of the dispersoid from the magnetophoretic velocity of the dispersoid, and obtains the porosity of the dispersoid on the basis of the volume susceptibility of the dispersoid, a volume relationship of the dispersoid, and a relationship in magnetization of the dispoersoid.