Vortex detection and turbulence measurement

US7942370B2 · kind B2 · utility

Assignee

• SAAB AB · SE

Inventors

• Robert Hillgren · Säter, SE
• Tommy Persson · Åkersberga, SE
• Fredrik Karlsson · Handen, SE

Key dates

• Filing date: May 7, 2007
• Grant date: May 17, 2011
• Expiry date: Mar 16, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G05D1/0615
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A vortex detection device suitable for use in fighter aircraft including an angle-of-attack sensor, an angle-of-attack processing unit connected to the angle-of-attack sensor capable of forming a signal representative of current air stream's angle-of-attack, a synthetic angle-of-attack estimation unit capable of forming a synthetic angle-of-attack signal, and a vortex level calculation unit connected to the processing and estimation unit, capable of calculating a vortex level signal, and a vortex detection unit connected to the vortex level calculation unit, for deciding, based on the vortex level signal, if a vortex is detected.