公开(公告)号：US20220260712A1

公开(公告)日：2022-08-18

申请号：US17616055

申请日：2020-05-29

Applicant: TDK Electronics AG

Inventor： Michael Gebhart ,  Martina Kreuzbichler ,  Amira Hedhili ,  Peter Lukan

IPC: G01S15/32 ,  G01S7/521 ,  G01S7/523 ,  G01S15/93 ,  G01S7/52

Abstract: In an embodiment an ultrasonic transducer includes a container having an opening, a base and a wall, a piezoelectric disk arranged within the container on the base, a cover closing the container and an electronics system integrated in the cover, wherein the electronics system makes electrical contact with the piezoelectric disk and is configured to control and to read the piezoelectric disk.

公开(公告)号：US20220326064A1

公开(公告)日：2022-10-13

申请号：US17636738

申请日：2020-09-07

Applicant: TDK Electronics AG

Inventor： Michael Gebhart ,  Stefan Sax ,  Thomas Koidl ,  Michael Pirolt

IPC: G01F23/2962

Abstract: In an embodiment a sensor system includes a housing, an electronic circuit and an ultrasonic distance sensor, wherein the electronic circuit and the ultrasonic distance sensor are arranged in the housing, and wherein the sensor system is configured to measure a distance between the sensor system and a surface of a material in a container by an echo propagation time of an ultrasonic burst in air.

公开(公告)号：US11601762B2

公开(公告)日：2023-03-07

申请号：US17286383

申请日：2019-10-22

Applicant: TDK Electronics AG

Inventor： Michael Gebhart ,  Peter Lukan ,  Michael Krenn

IPC: H04R17/00 ,  H04R17/10

Abstract: A sound transducer and a method for operating a sound transducer are disclosed. In an embodiment a sound transducer includes a first piezoelectric element having first external electrodes configured to generate an acoustic signal from an electrical signal or vice versa, and at least one second external electrode, wherein the second external electrode is separately controllable from the first external electrodes in order to set electro-acoustic properties of the sound transducer.

公开(公告)号：US20210352413A1

公开(公告)日：2021-11-11

申请号：US17286383

申请日：2019-10-22

Applicant: TDK Electronics AG

Inventor： Michael Gebhart ,  Peter Lukan ,  Michael Krenn

IPC: H04R17/10

Abstract: A sound transducer and a method for operating a sound transducer are disclosed. In an embodiment a sound transducer includes a first piezoelectric element having first external electrodes configured to generate an acoustic signal from an electrical signal or vice versa, and at least one second external electrode, wherein the second external electrode is separately controllable from the first external electrodes in order to set electro-acoustic properties of the sound transducer.

公开(公告)号：US12111201B2

公开(公告)日：2024-10-08

申请号：US17636738

申请日：2020-09-07

Applicant: TDK Electronics AG

Inventor： Michael Gebhart ,  Stefan Sax ,  Thomas Koidl ,  Michael Pirolt

IPC: G01F23/2962

CPC classification number: G01F23/2962

Abstract: In an embodiment a sensor system includes a housing, an electronic circuit and an ultrasonic distance sensor, wherein the electronic circuit and the ultrasonic distance sensor are arranged in the housing, and wherein the sensor system is configured to measure a distance between the sensor system and a surface of a material in a container by an echo propagation time of an ultrasonic burst in air.

公开(公告)号：US20240139775A1

公开(公告)日：2024-05-02

申请号：US18547839

申请日：2022-02-10

Applicant: TDK ELECTRONICS AG

Inventor： Michael Gebhart ,  Stefan Sax ,  Amira Hedhili ,  Martina Kreuzbichler ,  Peter Lukan ,  Johann Kreiter ,  Johann Pichler ,  Pierre Baumann ,  Jens Mohrmann

IPC: B06B1/06 ,  H10N30/02 ,  H10N30/88

CPC classification number: B06B1/0651 ,  H10N30/02 ,  H10N30/883

Abstract: The application relates to an ultrasonic transducer comprising a carrier with conductor traces and a piezoelectric element with electrodes, wherein the piezoelectric element has a contact side which is fixed on the carrier, and wherein the conductor traces and the electrodes are electrically coupled via the contact side of the element.

公开(公告)号：US20240017293A1

公开(公告)日：2024-01-18

申请号：US18252788

申请日：2021-11-09

Applicant: TDK Electronics AG

Inventor： Michael Gebhart

IPC: B06B1/06 ,  G01S15/74 ,  H04B11/00

CPC classification number: B06B1/0644 ,  G01S15/74 ,  H04B11/00

Abstract: An acoustic transponder (1) for an acoustic transmission system is described, comprising a transponder chip (2) and a piezoelectric element (4) for converting a carrier frequency into an electric voltage, the transponder (1) having a miniaturized design. Furthermore, a method for manufacturing a miniaturized transponder, the use of a miniaturized transponder, and an acoustic transmission system comprising the miniaturized transponder are described.

公开(公告)号：US20220321237A1

公开(公告)日：2022-10-06

申请号：US17642180

申请日：2021-03-01

Applicant: TDK Electronics AG

Inventor： Michael Gebhart ,  Renate Walter

IPC: H04B11/00 ,  H04B5/00 ,  G10K11/24

Abstract: In an embodiment an acoustic transmission system includes a primary side having a transmitting unit configured to provide a transmit signal, a receiving unit configured to receive a received signal in response to the transmitted signal and an electroacoustic transducer configured to convert the transmit signal into an acoustic signal and an acoustic signal into the receive signal and a secondary side having a transponder configured to receive a receive signal and transmit a transmit signal and an electroacoustic transducer located between the primary side and the secondary side, the electroacoustic transducer having a medium permeable to acoustic signals.