Hendrik Faustmann

TL;DR: In this paper, a method for investigating a structure and a structure for receiving and/or conducting a liquid or soft medium was proposed, the method comprising the steps of: a) exciting acoustic waves in the structure by means of at least one transmitter (3), b) converting at least a part of the energy associated with the acoustic waves (A) excited in a structure (2, 2a, 2b) into volume sound waves (B) of the medium (5), c) recharging the acoustic wave energy of the structure, and e) verifying whether a coating

TL;DR: In this article, an acoustic waveguide has two opposing guide elements delimiting an interior space to be filled with a medium, and upon filling the interior space with the medium, the guide elements, upon forming an interface with the Medium with an inner surface, can be converted into volumetric sound waves of the medium.

TL;DR: In this article, the authors proposed a method and a device for determining characteristics of a medium, the method comprising the steps of: 1) providing a container (1, 1') delimiting an interior space filled with the medium (2) to be characterized such that an inner surface of a side wall (111) of the container ( 1, 1'), forms an interface with the Medium (2), 2) exciting acoustic waves (B) in the container side wall by means of at least one transmitter (3), 3) converting at least a part of the energy associated with the

TL;DR: In this paper, the first and second bearing elements are movable relative to one another, and at least one receiver for receiving acoustic waves excited in the first bearing element (11, 13, 17, 12, 14, 18, 18).

TL;DR: In this paper, a method for investigating a structure and a structure for receiving and/or conducting a liquid or soft medium was proposed, the method comprising the steps of: (1) exciting acoustic waves in the structure by means of at least one transmitter, (2) converting at least a part of the energy associated with the acoustic waves (A) excited in the structural structure into volume sound waves of the medium, (3) reconverting at least the acoustic wave energy of the structure, and (4) verifying whether a coating is present on a surface of the surface of