Method and device for determining the distribution of product present in a reservoir, notably ink in an image device
US6361135B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1997 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Jan 15, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/284
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In order to determine a distribution of product present in a reservoir (112), particularly a distribution of ink in the reservoir of an image transfer device, a device includes electrodes (121, 122) disposed in contact with the product in the reservoir, a circuit (117) for successively supplying the electrodes with an excitation signal (SE) causing an electromagnetic radiation from the product, a receiving antenna (116) for sensing the electromagnetic radiation caused by the respective supplying of the electrodes, and a circuit (115) for processing the radiation sensed into a signal representing the distribution of product contained in the porous body inside the reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.