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US 2013/0094012 A1Published application
Method and apparatus for measuring the flow velocity by means of a plasma
AssigneeAirbus Operations GmbH
InventorsPeter PEUSER, Bernd PFINGSTEN
Life of this patent
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Abstract
A method and device for measuring the flow speed of a fluid, in one example, of air, is provided. The method and device include the use of laser radiation, in which, by means of at least one laser beam pulse focused in the fluid flow in the radiation focus a plasma is formed, and the acoustic and/or optical effects occurring during plasma formation are acquired, and from them the flow speed of the fluid is determined
Claims16
A method for measuring the flow speed of a fluid, comprising:
- focusing at least one laser beam impulse in the fluid flow and forming a plasma in the radiation focus;
- acquiring of at least one of acoustic effects and optical effects occurring during plasma formation;
- and
- determining the flow speed of the fluid from the acquired at least one of acoustic effects and optical effects.
1 more element
A device for measuring the flow speed of a fluid, comprising:
- at least one impulse laser with a focusing assembly for generating a radiation focus in the fluid and a plasma in the radiation focus;
- at least one detector device that acquires at least one of acoustic effects and optical effects occurring during plasma formation;
- and
- a control unit that controls the impulse laser, acquires and analyzes the signals of the at least one detector device and determines the flow speed from the acquired signals.
1 more element
Dependencies are inferred from the claim text.