SYSTEM AND METHOD FOR MEASUREMENT OF TRAVELING WEBS

摘要

SYSTEM AND METHOD FOR MEASUREMENT OF TRAVELING WEBS A system and method for optically measuring parameters including dry basis weight, basis weight and moisture content of fibrous sheet materials during manufacture without scanning. The system includes means for reflecting modulated light as parallel rays perpendicularly incident upon one surface of a traveling web, and means to detect light transmitted through the web at least at distinct bands of wavelengths. foreign.009/meas