Method and apparatus for non-contact and rapid determination of liquid content
US7265351B2 · kind B2 · utility
7Cited by
27References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2003 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Oct 1, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/3559
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for non-contact determination of liquid concentrations such as the content of water, oil, dye, paint, fuel, glue, etc., in a moving or stationary mass of production such as wood, paper, powders, fabrics, sand, bricks, concrete, plants, and the like, or in other liquids such as oil spills in water, is provided. The method comprises measuring the passive emissivity of a substance, using an imaging radiometer. It has been found that an emissivity image may be used to quantify the liquid content in a substance. The invented method allows for non-contact, rapid and continuous in-line measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.