公开(公告)号：US20210190572A1

公开(公告)日：2021-06-24

申请号：US17192917

申请日：2021-03-05

Applicant: ABB Schweiz AG

Inventor： Miklos LENNER ,  Frank Kassubek ,  Christof Bernhard ,  Detlef Pape

IPC: G01F23/296 ,  B06B1/06

Abstract: A transducer for non-invasive measurement includes: at least one first piezoelectric element; a second piezoelectric element; and a base material mountable to a wall of a vessel that contains a liquid. The base material has a planar portion and an angular shaped portion. The angular shaped portion has a plurality of outer faces, a first face of the plurality of outer faces of the angular shaped portion being connected to (or part of) a first face of the planar portion, a second face of the planar portion opposite to the first face of the planar portion being mountable to the wall of the vessel, at least one second face of the plurality of outer faces of the angular shaped portion being angled to the first face of the angular shaped portion at an angle less than an angle of 90 degrees internal to the base material.

公开(公告)号：US20210140864A1

公开(公告)日：2021-05-13

申请号：US17092357

申请日：2020-11-09

Applicant: ABB Schweiz AG

Inventor： Gerrit HELD ,  Stefano MARANO ,  Miklos LENNER ,  Frank KASSUBEK

IPC: G01N9/24 ,  G01N9/26 ,  G01F23/296

Abstract: A measurement system for determining a density ρ or a compressibility κ of a liquid medium in a vessel includes: at least one pressure sensor for measuring a hydrostatic pressure Δp of the liquid medium as a measured hydrostatic pressure Δp; at least one ultrasound sensor for measuring a first time of flight t1 along a first propagation path comprising a point at a level surface of the liquid medium, and for measuring a second time of flight t2 along a second propagation path, which is different from the first propagation path; and a control unit for determining the density ρ or the compressibility κ of the liquid medium based on the measured hydrostatic pressure Δp, the first time of flight t1, and the second time of flight t2.

公开(公告)号：US20210140927A1

公开(公告)日：2021-05-13

申请号：US17093666

申请日：2020-11-10

Applicant: ABB Schweiz AG

Inventor： Frank KASSUBEK ,  Miklos LENNER ,  Stefano MARANO ,  Gerrit HELD

IPC: G01N29/06 ,  G01N29/34

Abstract: A measurement system for measuring an inhomogeneity of a medium in a vessel includes: a first ultrasound emitter for sending a first ultrasound signal along a first path; a second ultrasound emitter for sending a second ultrasound signal along a second path different from the first path; a first ultrasound receiver for receiving the first ultrasound signal and measuring a first measurement parameter p1 of the received first ultrasound signal; a second ultrasound receiver for receiving the second ultrasound signal and measuring a second measurement parameter p2 of the received second ultrasound signal; and a control unit: receives the first measurement parameter p1 from the first ultrasound receiver, receives the second measurement parameter p2 from the second ultrasound receiver, and determines a ratio p1/p2 of the first measurement parameter p1 to the second measurement parameter p2.

公开(公告)号：US20210140923A1

公开(公告)日：2021-05-13

申请号：US17092346

申请日：2020-11-09

Applicant: ABB Schweiz AG

Inventor： Miklos LENNER ,  Frank KASSUBEK ,  Stefano MARANO ,  Gerrit HELD

IPC: G01N29/04 ,  G01N29/07 ,  G01N29/28

Abstract: A signal processing unit configured to: cause a first ultrasound emitter, when attached to a wall of a vessel, to emit a first ultrasound test signal; receive, from at least one ultrasound receiver, when attached to the wall of the vessel, the first ultrasound test signal; detect a time of flight of the received first ultrasound test signal; and determine that an acoustic coupling of the first ultrasound emitter and a first ultrasound receiver of the at least one ultrasound receiver to the wall of the vessel is intact if the detected time of flight corresponds to a length of a path in the wall of the vessel from the first ultrasound emitter to the at least one ultrasound receiver.

公开(公告)号：US20210190571A1

公开(公告)日：2021-06-24

申请号：US17192910

申请日：2021-03-05

Applicant: ABB Schweiz AG

Inventor： Miklos LENNER ,  Frank Kassubek ,  Christof Bernhard ,  Detlef Pape

IPC: G01F23/296 ,  B06B1/06 ,  B06B1/02 ,  G01N29/024

Abstract: A transducer for non-invasive measurement includes: a piezoelectric element; a base plate; and driver electronics. The piezoelectric element is mounted to a first face of the base plate. A second face of the base plate is mountable to a wall of a vessel that holds a liquid. The driver electronics drive the piezoelectric element at a plurality of activation frequencies. When the second face of the base plate is mounted to the wall of the vessel, the transducer when activated excites acoustic waves in the base plate and to launch an acoustic wave into the liquid. The transducer is designed such that an angular divergence of the acoustic wave launched into the liquid varies as a function of at least the activation frequency and a dimension of an emitter.

公开(公告)号：US20210078040A1

公开(公告)日：2021-03-18

申请号：US17016399

申请日：2020-09-10

Applicant: ABB Schweiz AG

Inventor： Frank KASSUBEK ,  Miklos LENNER ,  Stefano MARANO ,  Gerrit HELD

IPC: B06B1/06 ,  G01F23/296 ,  H01L41/08 ,  H01L41/18 ,  H01L41/37

Abstract: An ultrasonic Lamb wave transducer for non-invasive measurement and for emitting and/or receiving an ultrasonic Lamb wave pulse, an emission and a reception of the ultrasonic Lamb wave having an emission direction and a reception direction, respectively, the ultrasonic Lamb wave pulse being defined by at least one parameter, includes: at least one piezocomposite actuator for controlling the emission direction of the ultrasonic Lamb wave by emitting acoustic radiation at frequencies that are appropriate for generating ultrasonic Lamb waves.