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公开(公告)号：DE10392623B4
公开(公告)日：2009-09-24
申请号：DE10392623
申请日：2003-04-17
Applicant: ROSEMOUNT INC
Inventor： SITTLER FRED C , NORD CHRISTINA A , ROMO MARK G
Abstract: A pressure sensor assembly includes an elongate pressure sensor mounted to a sensor mounting block. A protective element covers the elongate pressure sensor to prevent the pressure sensor from contacting process fluid.
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公开(公告)号：AU2629901A
公开(公告)日：2001-07-16
申请号：AU2629901
申请日：2001-01-05
Applicant: ROSEMOUNT INC
Inventor： ROMO MARK G , RUD STANLEY E JR , LUTZ MARK A , SITTLER FRED C , TOY ADRIAN C
Abstract: A sensor has an electrical interconnect grown in a cavity between first and second layers that are bonded together. Electrically conductive grain growth material is selectively deposited on at least one of two electrically conductive film interconnect regions that face one another across the cavity. The grain growth material is then grown upon predetermined conditions to form the electrical interconnect between the two interconnect regions. A sensor element deposited in the cavity is electrically coupled between the layers by the interconnect. The grain growth material can be tantalum that is heated after the layers are bonded to grow grains that interconnect the electrically conductive films.
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公开(公告)号：CA2186450A1
公开(公告)日：1995-11-09
申请号：CA2186450
申请日：1995-04-27
Applicant: ROSEMOUNT INC
Inventor： SITTLER FRED C , HOWARD KATHRYN M
Abstract: A magnet (16) mounted on a moving stem (12) or rotary member of a valve generates magnetic flux over part of a stationary member (14) of the valve which has a uniquely patterned set of magnetoresistive sense resistors (RSIG0RSIG4) and three reference resistors (130, 134, 148) disposed thereon. The distance between two adjacent patterns can be equally spaced, or can be compressed for valves with non-linear characteristics in order to achieve increased resolution over a specific portion of the valve travel. Other embodiments can use a light source, beta radiation or neutron radiation as the source of flux, the pattern for each embodiment's sensor having some material responsive and some unresponsive to the flux. The sensor (18) can provide feedback representative of position in a valve positioner, or functions as the position sensor in a position transmitter.
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公开(公告)号：CA1316715C
公开(公告)日：1993-04-27
申请号：CA590423
申请日：1989-02-08
Applicant: ROSEMOUNT INC
Inventor： SITTLER FRED C , NETI RADHAKRISHNA M , TOY ADRIAN C
IPC: G01N27/30 , G01N27/42 , G01N25/64 , G01N27/416
Abstract: A solid state, thin film moisture sensing element is disclosed. The sensing element is fabricated by thin film deposition of at least a pair of two layer electrodes on an insulating surface. The active surface of the element is then coated with a layer of hygroscopic material and placed in a diffusion limiting housing to complete the sensing element assembly.
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公开(公告)号：CA2916108C
公开(公告)日：2018-03-13
申请号：CA2916108
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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Patent Agency Ranking
公开(公告)号：RU2636408C1
公开(公告)日：2017-11-23
申请号：RU2016140344
申请日：2015-03-13
Applicant: ROSEMOUNT INC
Inventor： HEDTKE ROBERT C , SITTLER FRED C , WILLCOX CHARLES R
Abstract: Изобретениеотноситсяк измерительнойтехникеи можетбытьиспользованопримониторингекоррозии. Предложенасистема (130) измеренияскоростикоррозии, котораявключаетпервуюмембрану (160) изпервогоматериала, выполненнуюподверженнойвоздействиюкоррозионно-активногоматериалаи отклоняющейсяв ответнакоррозию. Втораямембрана (162) выполненаподверженнойвоздействиюкоррозионно-активногоматериалаи отклоняющейсяв ответнакоррозию. Датчик (134) давленияфункциональносвязанс поменьшеймереоднойизпервойи второймембран (160, 162) ивыполненс возможностьюизмеренияотклоненияпоменьшеймереоднойизпервойи второймембран (160, 162) какфункциидавленияи степеникоррозиипоменьшеймереоднойизпервойи второймембран (160, 162). Техническийрезультат– повышениеточностии достоверностиполучаемыхданных. 21 з.п. ф-лы, 11 ил.
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公开(公告)号：BR112013000382A2
公开(公告)日：2016-06-07
申请号：BR112013000382
申请日：2011-06-01
Applicant: ROSEMOUNT INC
Inventor： KLOSINSKI ANDREW J , BRODEN DAVID A , SITTLER FRED C , HEDTKE ROBERT C
Abstract: transmissor de variável de processo, e, método para medir uma pressão de um fluido de processo em um transmissor de variável de processo. um transmissor de variável de processo (36) para medir uma pressão de um fluido de processo inclui um acoplamento de processo tendo um primeiro orifício (90) configurado para se acoplar a uma primeira pressão de processo e um segundo orifício (90) configurado para se acoplar a uma segunda pressão de processo. um sensor de pressão diferencial (56) é acoplado ao primeiro e segundo orifícios e provê uma saída relacionada a uma pressão diferencial entre a primeira pressão e a segunda pressão. o primeiro e o segundo sensores de pressão (97, 98) se acoplam aos respectivos primeiro e segundo orifícios e provêm saídas relacionadas à primeira e segunda pressões. circuitos de transmissor (72) são configirados para prover uma saída de transmissor com base na saída de um sensor de pressão diferencial e/ou o primeiro e/ou segundo sensores de pressão.
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公开(公告)号：IN2241MUN2014A
公开(公告)日：2015-10-09
申请号：IN2241MUN2014
申请日：2014-11-05
Applicant: ROSEMOUNT INC
Inventor： SITTLER FRED C
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.
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公开(公告)号：AU2013267918A1
公开(公告)日：2014-11-27
申请号：AU2013267918
申请日：2013-04-18
Applicant: ROSEMOUNT INC
Inventor： SITTLER FRED C
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.
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公开(公告)号：AU2443101A
公开(公告)日：2001-07-16
申请号：AU2443101
申请日：2000-12-20
Applicant: ROSEMOUNT INC
Inventor： SITTLER FRED C
Abstract: A pressure sensor capsule with a beam shaped sensor body, made of direct bonded layers of single crystal sapphire, surrounding a hollow central channel. A first beam end receives pressure and a second beam end has electrical contact pads and there is a mounting surface between the ends. The central channel has a narrower width passing through the mounting surface. An isolation plate is brazed to the mounting surface. Pressure sensing film is in the first end with leads extending through the channel to the electrical contact pads. The beam having a notch at the second end, forming an isolated lead surface on the central channel where the electrical contact pads are accessible.
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