Pressure sensor arrangement
    1.
    发明授权

    公开(公告)号:US11656141B2

    公开(公告)日:2023-05-23

    申请号:US16973869

    申请日:2019-06-11

    申请人: Danfoss A/S

    IPC分类号: G01L19/06 G01L9/00 G01L19/00

    摘要: A pressure sensor arrangement (1) for measuring a pressure of a fluid is described, the sensor arrangement (1) comprising a connector housing (2) having a fluid opening (3) and a fluid chamber (4) in connection with the fluid opening (3), at least one pressure sensitive element (5), a membrane (9) arranged between the pressure sensitive element (5) and the fluid chamber (4), and pressure attenuation means (10). Such a pressure sensor arrangement should be able to protect the measuring membrane from high frequency pressure pulsations with low costs. To this end the pressure attenuation means (10) are arranged in the fluid chamber (4) in direct contact with the membrane (9) separating the membrane (9) from the fluid in the fluid chamber and comprise a homogenous incompressible material having a mechanical loss factor of 0.1 or higher at frequencies of 200 Hz or higher.

    Sensor arrangement for measuring the pressure and temperature of refrigerant a fluid

    公开(公告)号:US12050144B2

    公开(公告)日:2024-07-30

    申请号:US17635066

    申请日:2020-08-12

    申请人: Danfoss A/S

    摘要: A sensor arrangement for measuring the pressure and temperature of a fluid includes a housing, a pressure sensor element, and a temperature sensor case. The housing includes a passage and a fluid opening, the passage and the fluid opening being in fluid communication. The pressure sensor element is connected to the housing, the pressure sensor element being in fluid communication with the passage. The temperature sensor case includes at least one temperature sensor element, the temperature sensor case being at least partially arranged in the passage. The sensor arrangement further includes an attachment element, wherein the attachment element attaches the temperature sensor case to the passage. The sensor arrangement further includes a fluid channel extending at least in part between the housing and the temperature sensor case, the fluid channel passing the attachment element and being in fluid communication with the fluid opening and the pressure sensor element.

    All compliant electrode
    3.
    发明授权

    公开(公告)号:US09972767B2

    公开(公告)日:2018-05-15

    申请号:US14765955

    申请日:2014-02-04

    申请人: Danfoss A/S

    摘要: The invention relates to a dielectric transducer structure comprising a body of elastomeric material that is provided with an electrode arrangement on each of two boundary surfaces lying oppositely to one another. At least one boundary surface comprises a corrugated area that comprises heights and depths. The aim of the invention is to improve the compliance to elastic deformations of the dielectric transducer structure. To this end, the heights and depths are arranged in both perpendicular directions of the boundary surface.

    SENSOR ARRANGEMENT FOR MEASURING THE PRESSURE AND TEMPERATURE OF A FLUID

    公开(公告)号:US20220291067A1

    公开(公告)日:2022-09-15

    申请号:US17635066

    申请日:2020-08-12

    申请人: Danfoss A/S

    摘要: The invention relates to a sensor arrangement (10) for measuring the pressure and temperature of a fluid, the sensor arrangement (10) including a housing (12), a pressure sensor element (18), and a temperature sensor case (20), wherein the housing (12) includes a passage (22) and a fluid opening (24), the passage (22) and the fluid opening (24) being in fluid communication, wherein the pressure sensor element (18) is connected to the housing (12), the pressure sensor element (18) being in fluid communication with the passage (22), wherein the temperature sensor case (20) includes at least one temperature sensor element (30), the temperature sensor case (20) being at least partially arranged in the passage (22), wherein the sensor arrangement (10) further includes an attachment element (26), wherein the attachment element (26) attaches the temperature sensor case (20) to the passage (22), wherein the sensor arrangement (10) further includes a fluid channel (28) extending at least in part between the housing (12) and the temperature sensor case (20), the fluid channel (28) passing the attachment element (26) and being in fluid communication with the fluid opening (24) and the pressure sensor element (18). The invention provides an improved sensor arrangement (10) for measuring the pressure and temperature of a fluid that includes a reduced size and is cost-efficient.

    PRESSURE SENSOR ARRANGEMENT
    5.
    发明申请

    公开(公告)号:US20210247258A1

    公开(公告)日:2021-08-12

    申请号:US16973869

    申请日:2019-06-11

    申请人: Danfoss A/S

    IPC分类号: G01L19/06 G01L9/00 G01L19/00

    摘要: A pressure sensor arrangement (1) for measuring a pressure of a fluid is described, the sensor arrangement (1) comprising a connector housing (2) having a fluid opening (3) and a fluid chamber (4) in connection with the fluid opening (3), at least one pressure sensitive element (5), a membrane (9) arranged between the pressure sensitive element (5) and the fluid chamber (4), and pressure attenuation means (10). Such a pressure sensor arrangement should be able to protect the measuring membrane from high frequency pressure pulsations with low costs. To this end the pressure attenuation means (10) are arranged in the fluid chamber (4) in direct contact with the membrane (9) separating the membrane (9) from the fluid in the fluid chamber and comprise a homogenous incompressible material having a mechanical loss factor of 0.1 or higher at frequencies of 200 Hz or higher.