Combined aerosol monitor and calibrateable light ray scattering reference rod
US4367950A · kind A · utility
2Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 24, 1980 |
| Grant date | Jan 11, 1983 |
| Priority date | — |
| Expiry date | Dec 24, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/4785
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A calibrateable light ray scattering reference rod utilized in a light scattering dust monitor. This light ray rod scatters an amount of light equivalent to a given concentration of dust. Adjustability is provided so that several concentrations of dust can be represented. This adjustment is accomplished by moving a threaded opaque slug axially inside the translucent rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.