Measurement of a fiber direction of a carbon fiber material and fabrication of an object in carbon fiber composite technique

US9234836B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Juergen Ernst · Erlangen, DE
• Stephan Junger · Bubenreuth, DE
• Wladimir Tschekalinskij · Nuremberg, DE

Key dates

• Filing date: Nov 15, 2012
• Grant date: Jan 12, 2016
• Expiry date: Nov 15, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2021/8472
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The fiber direction of a carbon fiber material of a test object is detected by means of the polarization direction of light reflected by the test object. If, for example, non-polarized light impinges upon carbon fibers, light reflected by the fibers is polarized in fiber direction.