Apparatus for measuring liquid vapor adsorption and desorption characteristics of a sample
US5058442A · kind A · utility
9Cited by
17References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 15, 1989 |
| Grant date | Oct 22, 1991 |
| Priority date | — |
| Expiry date | Feb 15, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/0893
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In order to measure the adsorption and desorption characteristics of water vapor by a porous or powdery sample, the sample is placed in an automated device which measures the difference between an equilibrium pressure and a sample pressure for various values of sample pressures, during both adsorption and desorption. A programmable computer calculates the amount of water vapor adsorption and desorption based upon the equilibrium pressure and can be used to control a printer for plotting the resulting data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.