Edge position sensor with integral thickness gauge
US5996872A · kind A · utility
0Cited by
7References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 13, 1997 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Jun 13, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2801/69
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A system for determining the edge of a continuous web and which compensates for non-uniformity in dielectric response, including thickness is disclosed. The invention comprises first electrode for outputting a signal corresponding to the edge position of a continuous web; and second electrode associated with said first electrode for outputting a second signal corresponding to the thickness of the web, such changes in the output signal of the second electrode are related to the output signal of the first electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.