An apparatus for determining the properties of a medium in the form of a fluid or a soft material

• Main Authors: FAUSTMANN HENDRIK, MUENCH MICHAEL
• Format: Patent
• Language: Chinese; English
• Published: 02.05.2012
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to an apparatus for determining the properties of a medium in the form of a fluid or a soft material, comprising: a) an acoustic waveguide, comprising at least two opposing guide elements (1, 2), which delimit an interior space (5) to be filled with a medium (L) and each of which, with an inner surface (11, 21) thereof, form an interface with the medium (L) upon filling the interior space (5) with the medium (L), b) a transmitter (3) for generating acoustic surface waves (S1) in the waveguide, c) a receiver (4) for receiving acoustic surface waves (S2) which propagate along the waveguide and which receiver can be coupled to an analysis unit for determining physical properties of the medium (L) on the basis of a signal generated by the receiver (4) upon receipt of the acoustic surface waves (S2), and d) a housing (G), in or at which at least the guide elements (1, 2); , the transmitter (3) and the receiver (4) are accommodated, wherein at the respective inner surface (11, 21) at least par