公开(公告)号：US20200149979A1

公开(公告)日：2020-05-14

申请号：US16604431

申请日：2018-04-10

Applicant: Etegent Technologies LTD.

Inventor： Richard A. Roth, II ,  Stuart J. Shelley ,  Kevin Sigmund ,  Oleg Lobkis

IPC: G01K11/24 ,  G01L11/06 ,  G01N29/07 ,  G01L1/10 ,  G10K11/24 ,  G01N29/44 ,  H01P3/10

Abstract: A sensor with a mechanical waveguide maybe characterized using test ultrasonic signals to generate a baseline signature, and the baseline signature may later be used to detect faults in the sensor.

公开(公告)号：US11473981B2

公开(公告)日：2022-10-18

申请号：US16604431

申请日：2018-04-10

Applicant: Etegent Technologies LTD.

Inventor： Richard A. Roth, II ,  Stuart J. Shelley ,  Kevin Sigmund ,  Oleg Lobkis

IPC: G01K11/24 ,  G01L1/10 ,  G01L11/06 ,  G01N29/07 ,  G01N29/44 ,  G10K11/24 ,  H01P3/10

Abstract: A sensor with a mechanical waveguide may be characterized using test ultrasonic signals to generate a baseline signature, and the baseline signature may later be used to detect faults in the sensor.

公开(公告)号：US20210132008A1

公开(公告)日：2021-05-06

申请号：US16604426

申请日：2018-04-10

Applicant: Etegent Technologies LTD.

Inventor： Richard A. Roth, II ,  Stuart J. Shelley ,  Kevin Sigmund ,  Oleg Lobkis

IPC: G01N29/44 ,  G01K11/24 ,  G01L11/06 ,  G01N29/07 ,  G01L1/10 ,  G10K11/24 ,  H01P3/10

Abstract: An active mechanical waveguide including an ultrasonically-transmissive material and a plurality of reflection points defined along a length of the waveguide may be driven at multiple resonant frequencies to sense environmental conditions, e.g., using tracking of a phase derivative. In addition, frequency-dependent reflectors may be incorporated into an active mechanical waveguide, and a drive frequency may be selected to render the frequency-dependent reflectors substantially transparent.

公开(公告)号：US11686627B2

公开(公告)日：2023-06-27

申请号：US16604426

申请日：2018-04-10

Applicant: Etegent Technologies LTD.

Inventor： Richard A. Roth, II ,  Stuart J. Shelley ,  Kevin Sigmund ,  Oleg Lobkis

IPC: G01K11/24 ,  G01L1/10 ,  G01L11/06 ,  G01N29/44 ,  H01P3/10 ,  G01N29/42 ,  G01N29/07 ,  G10K11/24

CPC classification number: G01K11/24 ,  G01L1/10 ,  G01L11/06 ,  G01N29/075 ,  G01N29/42 ,  G01N29/44 ,  G01N29/4454 ,  G10K11/24 ,  H01P3/10 ,  G01N2291/044

Abstract: An active mechanical waveguide including an ultrasonically-transmissive material and a plurality of reflection points defined along a length of the waveguide may be driven at multiple resonant frequencies to sense environmental conditions, e.g., using tracking of a phase derivative. In addition, frequency-dependent reflectors may be incorporated into an active mechanical waveguide, and a drive frequency may be selected to render the frequency-dependent reflectors substantially transparent.

公开(公告)号：US20200149980A1

公开(公告)日：2020-05-14

申请号：US16604434

申请日：2018-04-10

Applicant: Etegent Technologies LTD.

Inventor： Richard A. Roth, II ,  Stuart J. Shelley ,  Kevin Sigmund ,  Oleg Lobkis

IPC: G01K11/24

Abstract: An active mechanical waveguide including an ultrasonically-transmissive material and a plurality of reflection points defined along a length of the waveguide may be dampened using a damping device on a plurality of support members for the waveguide and/or using a damping device on the waveguide itself, and variable spacing of support members and/or constant tensioning of the waveguide may also be used.