Method and apparatus for measuring density
US8237926B2 · kind B2 · utility
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3References
20Claims
0Family size
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Key dates
| Filing date | Apr 15, 2009 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Apr 15, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/06113
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for measuring density which can simultaneously measure gaseous substance density and solid particulate material density and further can simultaneously measure the densities of a plurality of materials such as black smoke, white smoke, and water vapor. The method includes irradiating a laser having at least one wavelength equivalent to an absorption wavelength of each gaseous substance to be measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.