Lase Ultrasonic Web Stiffness tester

Tim Patterson, Ph.D., IPST at Ga Tech

Georgia Tech Research Corporation (GeorgiaInstitute of Technology)

关键词: Manufacturers;    Velocity Paper Stiffness, Laser Ultrasonics, Real-Time Testing;    Fibers;    Refining;    Paper Stiffness, Laser Ultrasonics, Real-Time Testing;   

DOI  :  10.2172/945369
RP-ID  :  Final Project Report
RP-ID  :  FC36-02ID14344
RP-ID  :  945369

美国|英语

来源: UNT Digital Library

【 摘 要 】

The objective is to provide a sensor that uses non-contact, laser ultrasonics to measure the stiffness of paper during the manufacturing process. This will allow the manufacturer to adjust the production process in real time, increase filler content, modify fiber refining and as result produce a quality product using less energy. The sensor operates by moving back and forth across the paper web, at pre-selected locations firing a laser at the sheet, measuring the out-of-plane velocity of the sheet then using that measurement to calculate sheet stiffness.