Method and device for measuring volume flows in liquids and gases
AssigneeProf. Dr. Ing. Gunther Krieg
InventorsGunther Krieg, Thomas Dornhofer, Michael Schultz
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Abstract
A method and device for measuring a volume flow of fluids in flow channels using ultrasound, wherein two ultrasonic transducers, each with a different transmitting frequency, are disposed in a flow channel in such a manner that emitted wave trains travel toward one another, with speed vectors of both wave trains having components that are in the flow direction and against the flow direction, and the superimposed signal is evaluated in terms of its position with respect to time.
Claims21
A method for measuring a volume flow of fluids in flow channels using ultrasound, the method comprising the steps of disposing two ultrasonic transducers each having a different transmitting frequency in the respective flow channels manner that wave trains emitted by the respective ultrasonic transducers travel toward one another and speed vectors of the respective wave trains have components in the flow direction and against the flow direction;
- providing a superimposed signal;
- and evaluating a superimposed signal with respect to time.
Device for measuring a volume flow of fluids in flow channels using ultrasound, the device comprising two ultrasonic transducers each having a different transmitting frequency disposed in a flow channel in such a manner that wave train emitted by the ultrasonic transducers travel toward one another and have speed vectors with components in a flow direction and against the flow direction, and an evaluator for evaluating a superimposed signal with respect to time.
Dependencies are inferred from the claim text.