Method for monitoring by absorption spectroscopy during the forming of flat glass and monitoring device
US8220291B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 9, 2006 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Feb 12, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0233
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method for controlling flat glass forming by flowing a molten glass over a liquid tin layer contained in a forming vat wherein a forming characteristic quantity is measured above the glass surface during forming by means of beams generated by at least one absorption spectroscopy-based analyser, wherein the light beams generated by said analyser form a net above the glass surface. A device for carrying out the inventive method comprising an arm for supporting a vessel which comprises a retroreflecting means for receiving a light beam and transmitting it in an opposite direction parallel to an incident optical path is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.