Methods and apparatus for continuous ambient particulate mass monitoring
US5932795A · kind A · utility
85Cited by
15References
6Claims
0Family size
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Key dates
| Filing date | Jan 22, 1997 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Jan 22, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N1/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus for the continuous monitoring of ambient particulate mass in a gas sample encompassing the monitoring of PM.sub.10, (particulate matter greater than 10 .mu.m) and coarse particles (2.5 to 10 .mu.m), the determination of the size distribution of particles, the determination of particle density and the determination of particle-bound water, utilizing such laboratory equipment as an inertial impactor, a virtual impactor, diffusion dryer(s), HEPA filter(s), particulate matter collector(s), and pressure transducer(s).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.