Method and apparatus for optical alignment of a measuring head in an X-Y plane
US5714763A · kind A · utility
18Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1996 |
| Grant date | Feb 3, 1998 |
| Priority date | — |
| Expiry date | Mar 25, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G9/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A two-dimensional position detector, in combination with dynamic z and/or flutter sensors, provides dynamic misalignment detection and correction of a measuring head, thereby allowing accurate determinations to be made of properties of a sheet material, such as basis weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.