Particulate calibration and generation simulator for particle measurement and number
US11131610B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Apr 13, 2020 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | Apr 13, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/2893
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method for generating a controlled, predictable, reproducible and variable-size distribution of particulate matter (PM), particle number (PN) and/or facsimile/simulation, derived from vaporizing and condensing a specialized liquid, utilizing a vapor delivery device; a filter capability so as to remove a significant amount of ambient PM/PN as a secondary calibration process for the identification of fine and ultra-fine particles (e.g., 0.3 micrometers and smaller) as well as a computer-controlled ability to perform a pre-determined series of calibration routines, housed in a container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.