Bond, Raymond Martin | Engineering Papers

DOE OSTI2020

System and method for determining linear density of carbon fiber

A method for determining a linear density of a carbon fiber tow. The method includes providing a pulse of air directed toward the carbon fiber tow, determining, via a first sensor, an air pressure of the pulse of air, and measuring, via a second sensor, a displacement of the carbon fiber tow in response to the pulse of air directed toward the carbon fiber tow. The method further includes calculating, via a controller, a linear density of the carbon fiber tow based on the air pressure and the displacement, and outputting, via the controller, the linear density.

Koester, David Joseph↗

DOE OSTI2020

System and method for determining tow parameters

A system for determining one or more characteristics of a carbon fiber tow. The system including a first laser profilometer, a second laser profilometer, and a controller. The first laser profilometer is located on a first side of the carbon fiber tow. The second laser profilometer is located on a second side of the carbon fiber tow. The controller is configured to receive, from the first profilometer, a first profile of the first side of the carbon fiber tow, and receive, from the second profilometer, a second profile of the second side of the carbon fiber tow. The controller is further configured to determine at least one characteristic selected from a group consisting of a tow width of the carbon fiber tow, a tow fuzz of the carbon fiber tow, a tow thickness of the carbon fiber tow, and a tow angle of the carbon fiber tow, the at least one characteristic based on the first profile and the second profile. The controller further configured to output the at least one characteristic of the carbon fiber tow.

36 MATERIALS SCIENCE↗