METHOD AND ARRANGEMENT FOR PRODUCING AN ENLARGED MEASUREMENT VOLUME FOR THE PURPOSE OF DETERMINING THE STRUCTURE AND/OR WINDING SPEED OF TEXTILE FIBRES ON THE BASIS OF LASER DOPPLER ANEMOMETRY

The method involves producing a laser beam (3) by a diode laser (1) and a collimator lens. A wedge prism (4) divides the laser beam into two partition beams such that the beams run on top of each other at an angle during emission from the prism to intersect the beams at a thread (8). A measuring sig...

Full description

Saved in:
Bibliographic Details
Main Authors LINDEN, MARTIN, HERMANNS, FERDINAND, JOSEF, KOHNS, PETER
Format Patent
LanguageEnglish
French
German
Published 11.11.2009
Subjects
ANALOGOUS ARRANGEMENTS USING OTHER WAVES
CONVEYING
DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES
HANDLING THIN OR FILAMENTARY MATERIAL
HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES
INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES
MEASURING
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK
PACKING
PERFORMING OPERATIONS
PHYSICS
RADIO DIRECTION-FINDING
RADIO NAVIGATION
STORING
TESTING
TRANSPORTING
Online AccessGet full text

Cover

More Information
Summary:The method involves producing a laser beam (3) by a diode laser (1) and a collimator lens. A wedge prism (4) divides the laser beam into two partition beams such that the beams run on top of each other at an angle during emission from the prism to intersect the beams at a thread (8). A measuring signal is produced from a light reflected from the thread according to laser-Doppler-anemometry-method. The measuring signal is electronically evaluated for determining the structure and or speed of the thread. An independent claim is also included for an arrangement for contactless determination of structure and/or the speed of a running textile thread at a spinning location of a textile machine.
Bibliography:Application Number: EP20070723833