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公开(公告)号：US20150260633A1
公开(公告)日：2015-09-17
申请号：US14656850
申请日：2015-03-13
Applicant: Rosemount Inc.
Inventor： Robert C. Hedtke , Fred C. Sittler , Charles R. Willcox
CPC classification number: G01N17/043 , G01L9/0072 , G01L13/025 , G01L19/0645 , G01N17/04
Abstract: A corrosion rate measurement system includes a first membrane of a first material configured to be exposed to a corrosive material and deflect in response to corrosion. A second membrane is configured to be exposed to a corrosive material and deflect in response to corrosion. A pressure sensor is operably coupled to at least one of the first and second membranes and configured to measure deflection of at least one of the first and second membranes as a function of a pressure and an amount of corrosion at least one of the first and second membranes.
Abstract translation: 腐蚀速率测量系统包括构造成暴露于腐蚀性材料并响应于腐蚀而偏转的第一材料的第一膜。 第二膜构造成暴露于腐蚀性材料并响应于腐蚀而偏转。 压力传感器可操作地耦合到第一和第二膜中的至少一个，并且被配置为测量作为第一和第二膜中的至少一个的压力和腐蚀量的函数的第一和第二膜中的至少一个的偏转 膜。
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公开(公告)号：US20250110001A1
公开(公告)日：2025-04-03
申请号：US18477736
申请日：2023-09-29
Applicant: Rosemount Inc.
Inventor： Charles R. Willcox , Nicholas E. Meyer , David J. Hillman , David M. Strei
IPC: G01L9/04
Abstract: A pressure transmitter for sensing a pressure of a process fluid in an industrial process includes a pressure sensor body fluidically coupled to the process fluid configured to receive an applied pressure related to a pressure of the process fluid. The pressure sensor body has a high pressure region configured to deform in response to the applied pressure and a low pressure region configured to deform in response to the applied pressure. A high range resistor bridge circuit is mounted in the high pressure region having a powered node, a common node and an output node and has a resistance which changes in response to pressure applied to the high pressure region. A low range resistor bridge circuit is mounted in the low pressure region and has a powered node, a common node and an output node and having a resistance which changes in response to pressure applied to the low pressure region. A pressure output circuit couples to the output node of the high range resistor bridge and the output node of the low range resistor bridge and provides an output related to the applied pressure based upon a voltage difference between the output node of the high range resistor bridge and the output node of the low range resistor bridge.
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公开(公告)号：US11506556B2
公开(公告)日：2022-11-22
申请号：US17038789
申请日：2020-09-30
Applicant: Rosemount Inc.
Inventor： Charles R. Willcox , Jason H. Rud
Abstract: A polymeric fluid sensor includes an inlet configured to receive fluid and an outlet. A polymeric tube is fluidically interposed between the inlet and the outlet and has a first sensing location with a first sidewall thickness and a second sensing location, spaced from the first sensing location, with a second sidewall thickness. A sleeve is disposed about the polymeric tube. The first sidewall thickness is less than the second sidewall thickness and a first sensing element is disposed at the first location and a second sensing element is disposed at the second location. In another example, the first and second sidewall thicknesses are the same and a fluid restriction is disposed within the polymeric tube between the first and second sensing locations.
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公开(公告)号：US20170089793A1
公开(公告)日：2017-03-30
申请号：US15148316
申请日：2016-05-06
Applicant: Rosemount Inc.
Inventor： Aleksandr Valdimirovich Fetisov , Pavel Aleksandrovich Petukhov , Galina Vladimirovna Cherkashina , Charles R. Willcox
CPC classification number: G01L19/0618 , G01L9/0064 , G01L9/0072 , G01L19/0046 , G01L19/06
Abstract: A process fluid pressure transmitter is provided. The process fluid pressure transmitter includes a pressure sensor having an electrical characteristic that changes in response to a deformation of the pressure sensor in response to pressure. Measurement circuitry is coupled to the pressure sensor and is configured to provide an indication of the electrical characteristic. An isolation diaphragm is configured to contact the process fluid and deform in response to process fluid pressure. A substantially incompressible fill fluid fluidically couples the isolation diaphragm to the pressure sensor. An overpressure compliant structure is coupled to the fill fluid and is configured to be substantially rigid at pressures below a selected threshold, but to deform in response to pressure above the selected threshold.
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公开(公告)号：US10209154B2
公开(公告)日：2019-02-19
申请号：US14672647
申请日：2015-03-30
Applicant: Rosemount Inc.
Inventor： David M. Strei , Charles R. Willcox , Blake T. Petersen , David A. Broden
Abstract: An in-line process fluid pressure transmitter is provided. The transmitter includes a process fluid connector configured to couple to a source of process fluid. A plug is coupled to the process fluid connector and has a passageway configured to convey fluid to a distal end of the plug. A pressure sensor subassembly is coupled to the plug at a weld. The pressure sensor subassembly has a pressure sensor operably coupled to the distal end of the passageway such that the pressure sensor reacts to process fluid pressure. The plug includes a sidewall encircling the weld. Transmitter electronics are coupled to the pressure sensor and configured to measure an electrical characteristic of the pressure sensor and provide a process fluid pressure value based on the measured electrical characteristic.
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Patent Agency Ranking
公开(公告)号：US10190968B2
公开(公告)日：2019-01-29
申请号：US14751298
申请日：2015-06-26
Applicant: Rosemount Inc.
Inventor： Robert C. Hedtke , Charles R. Willcox
Abstract: A corrosion measurement system includes a corrosion sensor having a corrosion sensor output related to corrosion due to exposure to a process fluid. A process variable sensor provides a process variable output related to a process variable of the process fluid. Measurement circuitry coupled to the corrosion sensor and the process variable sensor provides an output related to corrosion based upon the corrosion sensor output and the process variable output.
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公开(公告)号：US10048152B2
公开(公告)日：2018-08-14
申请号：US15148316
申请日：2016-05-06
Applicant: Rosemount Inc.
Inventor： Aleksandr Valdimirovich Fetisov , Pavel Aleksandrovich Petukhov , Galina Vladimirovna Cherkashina , Charles R. Willcox
Abstract: A process fluid pressure transmitter is provided. The process fluid pressure transmitter includes a pressure sensor having an electrical characteristic that changes in response to a deformation of the pressure sensor in response to pressure. Measurement circuitry is coupled to the pressure sensor and is configured to provide an indication of the electrical characteristic. An isolation diaphragm is configured to contact the process fluid and deform in response to process fluid pressure. A substantially incompressible fill fluid fluidically couples the isolation diaphragm to the pressure sensor. An overpressure compliant structure is coupled to the fill fluid and is configured to be substantially rigid at pressures below a selected threshold, but to deform in response to pressure above the selected threshold.
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公开(公告)号：US09891161B2
公开(公告)日：2018-02-13
申请号：US14656850
申请日：2015-03-13
Applicant: Rosemount Inc.
Inventor： Robert C. Hedtke , Fred C. Sittler , Charles R. Willcox
CPC classification number: G01N17/043 , G01L9/0072 , G01L13/025 , G01L19/0645 , G01N17/04
Abstract: A corrosion rate measurement system includes a first membrane of a first material configured to be exposed to a corrosive material and deflect in response to corrosion. A second membrane is configured to be exposed to a corrosive material and deflect in response to corrosion. A pressure sensor is operably coupled to at least one of the first and second membranes and configured to measure deflection of at least one of the first and second membranes as a function of a pressure and an amount of corrosion at least one of the first and second membranes.
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公开(公告)号：US20170089787A1
公开(公告)日：2017-03-30
申请号：US15277161
申请日：2016-09-27
Applicant: Rosemount Inc.
Inventor： Charles R. Willcox , Nicholas E. Meyer
IPC: G01L9/00
CPC classification number: G01L9/0047 , G01L19/0618
Abstract: A sensor includes a diaphragm having a bonding portion and a main boss separated from the bonding portion by at least one channel, the main boss having a first side face, a second side face and a chamfered corner face connecting the first side face to the second side face. A base of the sensor has a first contact area aligned with the main boss and separated from the main boss, wherein the bonding portion of the diaphragm is bonded to the base. At least one sensing element senses movement of the diaphragm.
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公开(公告)号：US20160377527A1
公开(公告)日：2016-12-29
申请号：US14751298
申请日：2015-06-26
Applicant: Rosemount Inc.
Inventor： Robert C. Hedtke , Charles R. Willcox
IPC: G01N17/04
Abstract: A corrosion measurement system includes a corrosion sensor having a corrosion sensor output related to corrosion due to exposure to a process fluid. A process variable sensor provides a process variable output related to a process variable of the process fluid. Measurement circuitry coupled to the corrosion sensor and the process variable sensor provides an output related to corrosion based upon the corrosion sensor output and the process variable output
Abstract translation: 腐蚀测量系统包括具有腐蚀传感器输出的腐蚀传感器，其与由于暴露于过程流体而导致的腐蚀相关。 过程变量传感器提供与过程流体的过程变量相关的过程变量输出。 耦合到腐蚀传感器和过程变量传感器的测量电路提供与基于腐蚀传感器输出和过程变量输出的腐蚀相关的输出
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