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公开(公告)号：AU2014303080A1
公开(公告)日：2015-12-24
申请号：AU2014303080
申请日：2014-06-03
Applicant: ROSEMOUNT INC
Inventor： HEDTKE ROBERT C , SITTLER FRED C
Abstract: A process fluid pressure measurement probe (100) includes a pressure sensor (112) formed of a single-crystal material and mounted to a first metallic process fluid barrier (130) and disposed for direct contact with a process fluid. The pressure sensor (112) has an electrical characteristic that varies with process fluid pressure. A feedthrough (122) is formed of a single-crystal material and has a plurality of conductors extending from a first end to a second end. The feedthrough (122) is mounted to a second metallic process fluid barrier (116) and is spaced from, but electrically coupled to, the pressure sensor (112). The pressure sensor (112) and the feedthrough (122) are mounted such that the secondary metallic process fluid barrier (116) is isolated from process fluid by the first metallic process fluid barrier (116).
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公开(公告)号：CA1314413C
公开(公告)日：1993-03-16
申请号：CA580021
申请日：1988-10-13
Applicant: ROSEMOUNT INC
Inventor： SITTLER FRED C , CRABTREE JAMES H
Abstract: A thermal effect sensing device comprises a semiconductor substrate supporting an insulating layer which has a thin film of platinum deposited on it. Holes are etched through the semiconductor substrate and the insulating layer. The platinum film is shaped to provide a serpentine resistive element suspended over one of the holes . The serpentine element is suspended from the rim of the hole, but is otherwise unsupported. The resistive element has a low thermal mass and there is a low thermal resistance between the element and fluid in the sensor. The sensor senses thermal properties of the fluid in the sensor, such as mass flow or thermal conductivity. A second conductive film is insulatingly deposited on the first film to provide a resistive sensor electrically isolated from a resistive heating element .
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公开(公告)号：CA2004965A1
公开(公告)日：1990-06-09
申请号：CA2004965
申请日：1989-12-08
Applicant: ROSEMOUNT INC
Inventor： SITTLER FRED C , NELSON CYNTHIA R
Abstract: A micromachined miniature valve used for gas chromatography has very low valve and interconnection dimensions to reduce the fluid volume inherent in other gas switching valves to thereby provide accurate measurements involving small gas flows. In order to reduce actuating diaphragm size, without encountering excessive stress concentrations in the diaphragm, the diaphragm can be polyimide film actuated in connection with a silicon valve body having valve seats with ports that are opened or closed by deflection of the diaphragm. Silicon wafers can be micromachined using batch fabrication techniques to provide the necessary valve seats and passageways for operating. The valve assembly is produced as a layered sandwich made up of individual wafers, including an actuator layer, a stop layer, a valve seat layer, and a layer which has flow channels receiving gas from the valve seat layer and making the necessary interconnections to provided outlets. The diaphragm film is positioned between the valve seat layer and the stop layer, and is deflected or displaced to control passage of gases through the valve openings. The diaphragm layer is sealed to the silicon valve body by a process which involves fusing, such as glass frit or solder sealing.
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公开(公告)号：WO2016048424A8
公开(公告)日：2016-06-23
申请号：PCT/US2015035244
申请日：2015-06-11
Applicant: ROSEMOUNT INC
Inventor： HOFFMAN MICHAEL JAMES , FADELL PAUL RYAN , SITTLER FRED C
CPC classification number: G01L19/04 , F16L23/006 , F16L53/00 , F25B21/02 , G01L19/0046 , G01L19/0092 , G01L19/0681
Abstract: A pressure transmitter assembly (100) for measuring a process pressure of an industrial process includes a pressure sensor (500) configured to sense the process pressure. A process coupling couples (106) the pressure sensor (500) to the industrial process. In one example configuration, a phase change material (312) carried in the process coupling (106) is configured to reduce heat transfer from the industrial process to the process variable sensor by changing phase in response to heat from the industrial process. In another example configuration, a thermocouple electric cooling element (122) is coupled to the process coupling (106) and configured to conduct heat away from the coupling (106) in response to an applied electric current.
Abstract translation: 用于测量工业过程的过程压力的压力变送器组件（100）包括被配置为感测过程压力的压力传感器（500）。 将压力传感器（500）耦合（106）到工业过程的过程。 在一个示例性配置中，在过程联接（106）中承载的相变材料（312）被配置为通过响应于来自工业过程的热而改变相位来减少从工业过程到过程变量传感器的热传递。 在另一示例性配置中，热电偶电冷却元件（122）耦合到过程联接器（106）并且被配置为响应于所施加的电流而将热量从耦合件（106）导出。
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15.发明申请DIFFERENTIAL PRESSURE TYPE FLOWMETER HAVING REDUNDANT PRESSURE SENSORS ALLOWING SENSOR FAILURE AND DEGRADATION DETECTION 审中-公开具有冗余压力传感器的差压式流量计允许传感器故障和降解检测
公开(公告)号：WO2013180843A3
公开(公告)日：2014-01-23
申请号：PCT/US2013037096
申请日：2013-04-18
Applicant: ROSEMOUNT INC
Inventor： SITTLER FRED C
CPC classification number: G01F1/383 , G01F25/0007
Abstract: A system (100) for measuring flow of process fluid through process piping (102), includes a flow restriction (108) in the process piping generating a differential pressure between an upstream side of the restriction (108) and a downstream side of the restriction (108). The differential pressure is related to flow of the process fluid. First and second upstream pressure transmitters (104C, 104D) are coupled to the process piping (102) on the upstream side of the flow restriction (108) and measure respective first and second upstream pressures. First and second downstream pressure transmitters (104A, 104B) are coupled to the process piping (102) on the downstream side of the flow restriction (108) and measure respective first and second downstream pressure of the process fluid. Flow rate of the process fluid is calculated based upon at least one upstream pressure and one downstream pressure.
Abstract translation: 用于测量过程流体通过过程管道（102）的流动的系统（100）包括在过程管道中的流量限制（108），其在限制（108）的上游侧和限制器的下游侧之间产生差压 （108）。 压差与工艺流体的流量有关。 第一和第二上游压力变送器（104C，104D）联接到流量限制（108）上游侧的过程管道（102），并测量相应的第一和第二上游压力。 第一和第二下游压力变送器（104A，104B）联接到流量限制（108）的下游侧的过程管道（102），并且测量过程流体的相应的第一和第二下游压力。 基于至少一个上游压力和一个下游压力来计算过程流体的流量。
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Patent Agency Ranking
公开(公告)号：WO2010141655A4
公开(公告)日：2011-03-10
申请号：PCT/US2010037162
申请日：2010-06-03
Applicant: ROSEMOUNT INC , KLOSINSKI ANDREW J , BRODEN DAVID A , SITTLER FRED C
Inventor： KLOSINSKI ANDREW J , BRODEN DAVID A , SITTLER FRED C
CPC classification number: G01L19/0645 , G01L19/0007 , G01L19/0663
Abstract: A pressure transmitter (10) for measuring a pressure of a process fluid in an industrial process, includes a pressure sensor (16) having an output related to an applied pressure. Measurement circuitry (18,20) coupled to the pressure sensor (16) is configured to provide a transmitter output related to sensed pressure. A pressure coupling face (60) having an opening (48,52) therein is arranged to transfer the applied pressure to the pressure sensor (16). A pressure coupling flange (13) having a flange face (62) abutting the pressure coupling face (60) is configured to convey the process fluid to the opening (48,50) of the pressure coupling face (60). Features are provided to control distribution of a loading force across the pressure coupling face and the flange face.
Abstract translation: 用于测量工业过程中的过程流体的压力的压力变送器（10）包括具有与施加的压力有关的输出的压力传感器（16）。 耦合到压力传感器（16）的测量电路（18,20）被配置为提供与感测到的压力有关的发射器输出。 其中具有开口（48,52）的压力耦合面（60）布置成将施加的压力传递到压力传感器（16）。 具有邻接压力耦合面（60）的凸缘面（62）的压力耦合凸缘（13）被构造成将过程流体输送到压力耦合面（60）的开口（48,50）。 提供了控制压力耦合面和法兰面上荷载力分布的特征。
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公开(公告)号：CA2941012C
公开(公告)日：2019-05-21
申请号：CA2941012
申请日：2015-03-13
Applicant: ROSEMOUNT INC
Inventor： HEDTKE ROBERT C , SITTLER FRED C , WILLCOX CHARLES R
Abstract: A corrosion rate measurement system (130) includes a first membrane (160) of a first material configured to be exposed to a corrosive material and deflect in response to corrosion. A second membrane (162) is configured to be exposed to a corrosive material and deflect in response to corrosion. A pressure sensor (134) is operably coupled to at least one of the first and second membranes (160, 162) and configured to measure deflection of at least one of the first and second membranes (160, 162) as a function of a pressure and an amount of corrosion at least one of the first and second membranes (160, 162).
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公开(公告)号：AU2016288175A1
公开(公告)日：2018-01-18
申请号：AU2016288175
申请日：2016-06-21
Applicant: ROSEMOUNT INC
Inventor： FADELL PAUL R , SCHUMACHER MARK S , PRICE JOSHUA M , SITTLER FRED C
Abstract: A polymeric remote seal system is provided for coupling a single-use container (110) to a pressure measurement instrument (104). The polymeric remote seal system includes a process-side coupling (116), an instrument-side coupling (118) and a fluidic coupling (106) therebetween. The process-side coupling (116) is configured to couple to the single-use container (110) and is formed of a radiation sterilizable polymer. The process-side coupling (116) has a process-side deflectable diaphragm (256; 234) that is configured to deflect in response to pressure within the single-use container (110). The instrument-side coupling (118) is configured to couple to the pressure measurement instrument (104) and is formed of a radiation sterilizable polymer. The instrument-side coupling (118) is configured to fluidically convey fluid pressure to an isolation diaphragm of the pressure measurement instrument. Tubing (106) fluidically couples the process-side coupling (116) to the instrument-side coupling (118).
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公开(公告)号：CA2804458C
公开(公告)日：2015-11-03
申请号：CA2804458
申请日：2011-06-01
Applicant: ROSEMOUNT INC
Inventor： BRODEN DAVID A , HEDTKE ROBERT C , KLOSINSKI ANDREW J , SITTLER FRED C
Abstract: A process variable transmitter (36) for measuring a pressure of a process fluid includes a process coupling having a first port (90) configured to couple to a first process pressure and a second port (90) configured to couple to a second process pressure. A differential pressure sensor (56) is coupled to the first and second ports and provides an output related to a differential pressure between the first pressure and the second pressure. First and second pressure sensors (97, 98) couple to the respective first and second ports and provide outputs related to the first and second pressures. Transmitter circuitry (72) is configured to provide a transmitter output based upon the output from the differential pressure sensor and/or the first and/or second pressure sensors.
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公开(公告)号：DE60238498D1
公开(公告)日：2011-01-13
申请号：DE60238498
申请日：2002-09-24
Applicant: ROSEMOUNT INC
Inventor： GRAVEL JAMES L , SITTLER FRED C , BRODEN DAVID A
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