公开(公告)号：US11656138B2

公开(公告)日：2023-05-23

申请号：US16906194

申请日：2020-06-19

Applicant: Rosemount Inc.

Inventor： Nicholas Edward Meyer ,  Mark George Romo ,  Eric Paul Petersen ,  Timothy David Lasonne ,  David Jonathon Hillman

IPC: G01L9/02 ,  G01L7/08 ,  G01L19/14 ,  G01L9/00 ,  G01L13/02

CPC classification number: G01L9/0051 ,  G01L9/0044 ,  G01L13/025 ,  G01L9/0048 ,  G01L19/145

Abstract: A pressure sensor assembly includes a pressure sensor, a pedestal and an electrically conductive header having a header cavity. The pressure sensor includes, an electrically conductive sensing layer having a sensor diaphragm, an electrically conductive backing layer having a bottom surface that is bonded to the sensing layer, an electrically insulative layer having a bottom surface that is bonded to a top surface of the backing layer, and a sensor element having an electrical parameter that changes based on a deflection of the sensor diaphragm in response to a pressure difference. The pedestal is bonded to the electrically insulative layer and attached to the header within the header cavity.

公开(公告)号：US20210396615A1

公开(公告)日：2021-12-23

申请号：US16906194

申请日：2020-06-19

Applicant: Rosemount Inc.

Inventor： Nicholas Edward Meyer ,  Mark George Romo ,  Eric Paul Petersen ,  Timothy David Lasonne ,  David Jonathon Hillman

IPC: G01L9/00 ,  G01L13/02

Abstract: A pressure sensor assembly includes a pressure sensor, a pedestal and an electrically conductive header having a header cavity. The pressure sensor includes, an electrically conductive sensing layer having a sensor diaphragm, an electrically conductive backing layer having a bottom surface that is bonded to the sensing layer, an electrically insulative layer having a bottom surface that is bonded to a top surface of the backing layer, and a sensor element having an electrical parameter that changes based on a deflection of the sensor diaphragm in response to a pressure difference. The pedestal is bonded to the electrically insulative layer and attached to the header within the header cavity.

公开(公告)号：US20240241005A1

公开(公告)日：2024-07-18

申请号：US18153586

申请日：2023-01-12

Applicant: Rosemount Inc.

Inventor： Jonathan Gordon Koehler ,  Eric Paul Petersen

IPC: G01L13/02 ,  G01L9/00

CPC classification number: G01L13/025 ,  G01L9/0072

Abstract: A method of manufacturing a pressure sensor for sensing a pressure of a process fluid includes obtaining a sensor body having a sensor cavity formed therein. A metal tube is placed through an opening in the sensor body into the sensor cavity. A rod is placed through the metal tube and into the sensor cavity. The sensor cavity is at least partially filled with a dielectric material and the dielectric material completely covers the metal tube carried in the sensor cavity and a portion of the rod. The rod is removed and thereby forming a dielectric passageway which is fluidically coupled to the metal tube. The sensor cavity is sealed with a deflectable diaphragm which is configured to deflect in response to applied pressure from the process fluid. A differential pressure sensor for sensing a differential pressure of a process fluid includes a sensor body having a sensor cavity formed therein is also provided.