Infrared Thermography and DIT of Quadcopter Rotor Blades Using Laser Heating

Infrared Thermography and DIT of Quadcopter Rotor Blades Using Laser Heating

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A measuring method to detect wall flow topologies by active infrared thermography was developed.Quadcopter rotor blades were studied in typical hover and forward flight conditions, while using a high-power infrared laser to heat the blade surface.By this, the distance between heat source and measuring object could be significantly Marathon Running Shoes/Sneakers increased compared to conventional heat sources.The resulting images show little blurring at high signal-to-noise ratios.In steady-state flow conditions, wall flow topologies Safety Boots could be detected reliably and show good agreement with performed oil-film interferometry measurements.

Wind tunnel experiments at forward flight conditions were conducted and indicate unsteady shifts of the transition location.