Method and assembly for sensing process parameters
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
UP-0697377
(2010-02-01)
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등록번호 |
US-7845222
(2011-01-31)
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발명자
/ 주소 |
- Goedel, Jarodd Dan
- Ashton, Gregory Lloyd
- Parsons, John Patrick
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출원인 / 주소 |
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대리인 / 주소 |
Andes, Esq., William Scott
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인용정보 |
피인용 횟수 :
6 인용 특허 :
4 |
초록
▼
A method and an assembly for sensing a process parameter are provided. The sensor assembly includes a base, a pedestal including a body extending between a leading edge and a trailing edge in a direction of fluid flow past the body, a first edge of the pedestal coupled to the base, a second edge opp
A method and an assembly for sensing a process parameter are provided. The sensor assembly includes a base, a pedestal including a body extending between a leading edge and a trailing edge in a direction of fluid flow past the body, a first edge of the pedestal coupled to the base, a second edge opposes the first edge. The sensor assembly also includes an airfoil extending from the pedestal, a leading edge of the airfoil aligned with the leading edge of the pedestal, the airfoil extending in a direction of a flow of fluid along the second edge. The sensor assembly further includes a sensor element extending from the second edge spaced apart from the airfoil by a first gap, and a shield at least partially surrounding the sensor element, the shield spaced apart from the airfoil by a second gap defining a fluid flow inlet to the sensor element.
대표청구항
▼
The invention claimed is: 1. A sensor assembly comprising: a base; a pedestal comprising a body extending between a leading edge and a trailing edge in a direction of fluid flow past said body, a first edge of said pedestal coupled to said base, a second edge opposes said first edge; an airfoil ext
The invention claimed is: 1. A sensor assembly comprising: a base; a pedestal comprising a body extending between a leading edge and a trailing edge in a direction of fluid flow past said body, a first edge of said pedestal coupled to said base, a second edge opposes said first edge; an airfoil extending from said pedestal, a leading edge of said airfoil aligned with said leading edge of said pedestal, said airfoil extending in a direction of a flow of fluid along said second edge; a sensor element extending from said second edge spaced apart from said airfoil by a first gap; and a shield at least partially surrounding said sensor element, said shield spaced apart from said airfoil by a second gap defining a fluid flow inlet to said sensor element. 2. A sensor assembly in accordance with claim 1, further comprising a gap between said shield and said sensor defining a sensor flow channel. 3. A sensor assembly in accordance with claim 1, wherein said airfoil comprises a first sidewall extending between said leading edge and a first trailing edge, a profile of said first sidewall is configured to channel liquid entrained in a fluid flowing over said first sidewall away from said fluid flow inlet to said sensor element. 4. A sensor assembly in accordance with claim 1, wherein said airfoil comprises a first concave sidewall portion extending between said leading edge and a first convex sidewall portion, said first convex sidewall portion extending from said first concave sidewall portion and a first trailing edge of said airfoil. 5. A sensor assembly in accordance with claim 1, wherein said airfoil is symmetric about a centerline of said airfoil in a direction of fluid flow. 6. A sensor assembly in accordance with claim 3, wherein said airfoil comprises a second sidewall extending between said leading edge and a second trailing edge and opposing said first sidewall, a profile of said second sidewall is configured to channel liquid entrained in a fluid flowing over said second sidewall away from said fluid flow inlet to said sensor element. 7. A sensor assembly in accordance with claim 1, wherein said airfoil comprises a convex surface extending between a first trailing edge and a second trailing edge of said airfoil. 8. A sensor assembly in accordance with claim 1, wherein said pedestal and said airfoil each comprises a width orthogonal to the direction of flow, the width of said pedestal is less than the width of the airfoil. 9. A sensor assembly in accordance with claim 1, further comprising a flange coupled to said base, said flange configured to couple to a wall of a fluid conveying member. 10. A sensor assembly in accordance with claim 1, wherein said pedestal comprises a knife-edge leading edge and diverging sidewalls extending from said leading edge to respective trailing edges of said pedestal. 11. A sensor assembly in accordance with claim 1, wherein said body of said pedestal comprises a height between said first edge and said second edge, said height selected to extend said airfoil into the flow of fluid beyond a boundary layer of the flow of fluid. 12. A method of sensing a process parameter, said method comprising: positioning a process sensor assembly within a flow of fluid, the sensor assembly comprising a convex surface and an adjacent concave surface oriented serially in a direction of the flow of fluid; sampling a portion of the flow of fluid after the portion of the flow of fluid is decelerated by the concave surface; and channeling the portion of the flow of fluid to a sensor element shielded from direct impingement of the flow of fluid. 13. A method in accordance with claim 12 wherein positioning a process sensor assembly within a flow of fluid comprises positioning the sensor element using a pedestal that extends beyond a boundary flow layer adjacent a sidewall of a conduit conveying the flow of fluid. 14. A method in accordance with claim 12 wherein positioning a process sensor assembly within a flow of fluid comprises positioning the sensor element using a pedestal that includes a knife-edge leading edge in the direction of the flow of fluid. 15. A method in accordance with claim 12 wherein positioning a process sensor assembly within a flow of fluid comprises positioning the sensor element using a pedestal that includes a pair of sidewalls diverging from a knife-edge leading edge to a respective pair of trailing edges separated by a concave trailing surface. 16. A method in accordance with claim 12 wherein sampling a portion of the flow of fluid comprises creating a relatively low pressure volume proximate a concave trailing surface within an inlet of a flow channel. 17. A method in accordance with claim 12 wherein sampling a portion of the flow of fluid comprises substantially stalling the portion of the flow of fluid proximate to an inlet of a flow channel using the concave surface. 18. A process sensing system comprising: a fluid conveyor comprising a sidewall; a pedestal coupled to said sidewall; an airfoil extending from said pedestal, said airfoil substantially symmetric about a longitudinal axis extending substantially in a direction of a flow of fluid through the fluid conveyor, said airfoil comprising a convex surface and a convex surface oriented serially in the direction of the flow of fluid; a sensor element extending from said pedestal downstream of said airfoil; and a shield at least partially surrounding said sensor element, said shield spaced apart from said sensor element by a sensor flow channel, said shield spaced apart from said airfoil by a second gap defining a fluid flow inlet to said sensor element. 19. A system in accordance with claim 18 further comprising wherein said pedestal comprises a wedge shaped cross-section having a knife edge leading edge and a pair of trailing edges spaced apart by a trailing surface. 20. A system in accordance with claim 18 wherein said airfoil is configured to substantially stall a flow of fluid using said concave surface proximate the fluid flow inlet.
이 특허에 인용된 특허 (4)
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Rumford Kimball J. (Fairfield CT) Norris Richard M. (Stratford CT), Anti-icing management system.
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Sanderson John J. (Oakville CAX) Banks Ivor (Georgetown CAX), Controlled bypass inlet duct.
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McLaren Douglas (Seattle WA) Orr William W. (Mercer Island WA), Thermal anti-icing system for aircraft.
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DeSalve Dennis W. (Findlay OH), Turbine exhaust gas anti-ice system.
이 특허를 인용한 특허 (6)
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Parsons, John Patrick, Apparatus for determining an air temperature.
-
Liu, Xuejun; Feulner, Matthew R., Engine inlet total air temperature sensor.
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Goedel, Jarodd Dan, Method and assembly for high angle of attack process parameter sensors.
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Parsons, John Patrick, Process sensor with convective increaser.
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Shaughnessy, Kyle, Temperature sensor.
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Wigen, Scott, Total air temperature sensors.
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