Apparatus monitoring the deposition of a liquid-to-pasty medium on a substrate
US6642723B2 · kind B2 · utility
1Cited by
11References
37Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 11, 2002 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Sep 11, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C11/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for monitoring deposition of a liquid-to-pasty medium on a substrate has a sensor fitted with two electrodes and an electronic circuit connected to the sensor for generating a signal which is characteristic of the substrate and the medium. The electronic circuit measures the imaginary component of the electrical permittivity of the substrate moving, together with the medium, between the two electrodes, and uses the measured value to determine the characteristic signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.