Apparatus and method for measuring flow-permeable surface area of porous powders using volume flow rate
US12146774B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2020 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Jan 5, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/11
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for determining particle size of a quantity of a sample material contained in a sample material holder is disclosed, where the sample material is made up a plurality of the particles. The system may incorporate a pressure regulating subsystem for receiving a first pressurized airflow signal and regulating the first pressurized airflow signal to a second pressurized airflow signal having a pressure lower than the first pressurized airflow signal, the second pressurized airflow signal configured to be input to a first end of the sample material holder. A mass airflow transducer may be incorporated for determining a flow rate representing an air flow value entering the sample material holder. A control module uses the air flow value in combination with the pressure differential value and mathematically determining a dimension of the particles making up the sample material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.