Sound damper for ultrasonic waves
AssigneeKrohne Mebtechnik GmbH & Co. KG
InventorsJan Aart van Bckkum, Nico Roosnek
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Abstract
The invention concerns, according to the first teaching, a sound damper for ultrasonic waves in a gas flow, with at least one damping element (3) that can be inserted into a line for the gas flow. In accordance with the invention, the sound damper for ultrasonic waves is characterized by the fact that at least one scattering unit (5, 6, 7) having a number of small reflective surfaces is located in the damping element (3).
Claims2
An ultrasonic flow meter comprising ultrasonic transducers, each of said transducers emitting ultrasonic waves that are received by the other, wherein a damping element for ultrasonic waves is located between said ultrasonic transducers, said damping element being composed of a perforated, tubular body closed at one end, being filled with a number of scattering units comprising basically cylindrical pall rings having spoon-shaped, curved guide elements on their insides.
Dependencies are inferred from the claim text.