Measurement of the properties of a web in paper production
AssigneeStfi
InventorLeif T. Ostman
Life of this patent
Estimating the term…
Abstract
Variations in the properties of a continuously running web are measured by reciprocating the scanning device across the web. The movement of the scanning device is so time controlled that this movement is out of phase with the variation in the paper properties in the machine direction of the web.
Claims6
A method of measuring variations in the properties of a continuously running paper web comprising indication of the paper properties by reciprocating a scanning device across the web, wherein movement of the scanning device is time controlled, so that said movement is out of phase with periodical variation of the paper properties in the longitudinal direction of the web.
Dependencies are inferred from the claim text.