Method of and apparatus for measuring the density profile of a liquid layer
US4425787A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1981 |
| Grant date | Jan 17, 1984 |
| Priority date | — |
| Expiry date | Sep 15, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N9/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for measuring the density profile of a layer of liquid includes a plurality of individual tubes arranged in side-by-side fashion, each of the tubes having an inlet opening in its lower end. A vacuum manifold is connected to the apertured upper ends of the tubes. The apertures in the lower ends of the tubes are vertically staggered and the tubes are vertically oriented with the lower ends of the tubes immersed in the liquid, so that the inlet openings are differentially spaced from the surface of the liquid. The application of a vacuum to the tubes causes liquid from the different levels to be drawn into the tubes, the height of the liquid in the tubes above the surface being proportional to the density of the liquid drawn into the tubes through the inlets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.