公开(公告)号：US11982647B2

公开(公告)日：2024-05-14

申请号：US17414423

申请日：2019-12-10

Applicant: Endress+Hauser Flowtec AG

Inventor： Oliver Berberig ,  Jens Rautenberg ,  Beat Kissling ,  Sascha Grunwald ,  Rudolf Braun ,  Achim Stark ,  Klaus Beringer ,  Stefan Rüger ,  Theo Gerald Hofmann

IPC: G01N29/24 ,  G01F1/66 ,  G01F1/86 ,  G01N29/024 ,  G01N29/44

CPC classification number: G01N29/2437 ,  G01N29/4463 ,  G01N2291/02809 ,  G01N2291/02818 ,  G01N2291/0423 ,  G01N2291/0427

Abstract: An ultrasound instrument for detecting a measured value of a medium includes a measurement chamber having a chamber wall and a longitudinal axis; a pair of ultrasound transducers configured to transmit ultrasound signals along a signal path between ultrasound transducers of the pair through the measurement chamber and to receive ultrasound signals, wherein the signal path includes a signal reflection on a reflection surface, wherein the chamber wall in a region of the reflection surface opposite a first chamber side is configured to prevent a reflection of an ultrasound signal on a chamber outer surface of the chamber wall in the direction of the signal path, wherein the chamber wall has, in the region of the reflection surface, a maximum wall thickness which is at least a factor of 1.5 greater than a Rayleigh wavelength, associated with a central frequency, of the ultrasound signal in the chamber wall.

公开(公告)号：US20220091072A1

公开(公告)日：2022-03-24

申请号：US17414423

申请日：2019-12-10

Applicant: Endress+Hauser Flowtec AG

Inventor： Oliver Berberig ,  Jens Rautenberg ,  Beat Kissling ,  Sascha Grunwald ,  Rudolf Braun ,  Achim Stark ,  Klaus Beringer ,  Stefan Rüger ,  Theo Gerald Hofmann

IPC: G01N29/24 ,  G01N29/44

Abstract: An ultrasound instrument for detecting a measured value of a medium includes a measurement chamber having a chamber wall and a longitudinal axis; a pair of ultrasound transducers configured to transmit ultrasound signals along a signal path between ultrasound transducers of the pair through the measurement chamber and to receive ultrasound signals, wherein the signal path includes a signal reflection on a reflection surface, wherein the chamber wall in a region of the reflection surface opposite a first chamber side is configured to prevent a reflection of an ultrasound signal on a chamber outer surface of the chamber wall in the direction of the signal path, wherein the chamber wall has, in the region of the reflection surface, a maximum wall thickness which is at least a factor of 1.5 greater than a Rayleigh wavelength, associated with a central frequency, of the ultrasound signal in the chamber wall.