Method and device for measuring at least one transverse dimension of a textile yarn
US5223912A · kind A · utility
0Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1991 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Oct 15, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/105
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and device for measuring at least one transverse dimension of a textile yarn using an optical system. The measuring device comprises a coherent light source which sends a beam (10) onto a cylindrical lens (11). Two axially movable plates (12, 13) are located on opposite sides of the yarn (14) and define two identical slots (15, 16) to form two secondary sources which are arranged to interfere with the coherent light source directed at a lens (17). The transverse dimension of the yarn is deduced from the spacing between the bands (18) of the resulting interference pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.