Method and apparatus for determining pore volume in a solid sample
US5569839A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1994 |
| Grant date | Oct 29, 1996 |
| Priority date | — |
| Expiry date | Nov 17, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/0886
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention concerns an apparatus and method for determining pore volume parameters of a solid sample. The apparatus comprises a high pressure cell (50), a sample holder (1) provided with an orifice (21), means (2) for creating a vacuum connected to a chamber (10a) containing the sample holder by at least one orifice (30), and a mercury supply. The apparatus also comprises a syringe pump (9) connected to the chamber and to mercury supply means for delivery of mercury under pressure, means for programming a steady supply of mercury for a fixed period of time connected to the pump, at least one pressure sensor (15) downstream of the pump which continuously reads the pressure, and means (41) for signal collection and processing connected to the pressure sensor and the means for programming a steady supply of mercury and adapted to calculate the porosimetry parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.