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Apparatus using a feedback network to measure fluid pressures 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01L-009/00
  • G01F-001/34
출원번호 US-0371851 (1995-01-12)
발명자 / 주소
  • Briefer Dennis K. (Marlborough MA) Batista Anthony T. (Stow MA)
출원인 / 주소
  • Setra Systems, Inc. (Acton MA 02)
인용정보 피인용 횟수 : 42  인용 특허 : 0

초록

An apparatus is disclosed for measuring the pressure of a liquid column enclosed within a pressurized tank or cell, and for deriving the height and/or density of the liquid column based on the measured pressure. The apparatus includes a first pressure sensor for differentially measuring the pressure

대표청구항

An apparatus for measuring a characteristic of a liquid column in a cell having a blanket region overlying said liquid column said blanket region being characterized by a blanket pressure P1, comprising: A. first pressure sensing means for differentially generating a first signal representative of t

이 특허를 인용한 특허 (42)

  1. Alves, Evaristo Orellana; J?nior, Cl?vis Catananti, Assemblies adapted to be affixed to containers containing fluid and methods of affixing such assemblies to containers.
  2. McCrea, Benjamin J.; Rupert, Matthew; Bitsch, Michael, Branch circuit monitor power measurement.
  3. Cook, Martin; Bitsch, Michael, Branch circuit monitor with paging register.
  4. Bitsch, Michael; Bowman, Marc, Branch current monitor with an alarm.
  5. Bitsch, Michael; Cook, Martin; Rupert, Matthew, Branch current monitor with calibration.
  6. Parker, Aaron; Dolim, Gregory P., Branch meter with configurable sensor strip arrangement.
  7. Lucas, Paul D.; Denner, John; Grudzien, Chris P.; Lischer, Jeff; Weight, Kristen, Capacitive based pressure sensor design.
  8. Crider Jim, Capacitive pressure sensor with moving or shape-changing dielectric.
  9. Gould, Chuck; Lanctot, Jane; Cucci, Jerry; Peterson, Tom; Wink, Dan; Chinnock, Bob, Chemically inert flow control with non-contaminating body.
  10. Lischer,D. Jeffrey; Traverso,Robert, Contaminant deposition control baffle for a capacitive pressure transducer.
  11. Cook, Martin, Current meter with on board memory.
  12. Cook, Martin, Current meter with voltage awareness.
  13. Hunter, Phillip; Bernklau, James; Bruno, David A., Current switch with automatic calibration.
  14. Pierson, David, Current switch with automatic calibration.
  15. Harish, Divyasimha; Dallenbach, William D.; Wong, King; Schultz, John, Cylindrical capacitive force sensing device and method.
  16. Silvestri, Claudio; Tommasi, Gabriele, Dual chamber blood reservoir.
  17. Doorhy,Brendan; Pelland,Michael; Pelland,Corey; Alling,Jon, Electronic level gauge.
  18. Harish,Divyasimha; Dallenbach,William D., Flexible apparatus and method to enhance capacitive force sensing.
  19. Hashim, Hasdi R.; Siddiqui, Shahid Ahmed, Fuel storage system and method for detecting a gas pressure therein.
  20. Dallenbach,William D.; Harish,Divyasimha, Gap-change sensing through capacitive techniques.
  21. Agami,Mark, High-temperature reduced size manometer.
  22. Bolland, Daniel B., Level switch with verification capability.
  23. Carroll, Carlton W.; Klein, A. David, Liquid level and weight sensor.
  24. Grudzien, Chris P., Method and apparatus for forming a reference pressure within a chamber of a capacitance sensor.
  25. Jonsson,Steffan, Method for producing a pressure sensor for detecting small pressure differences and low pressures.
  26. Grudzien,Chris P., Method of forming a seal between a housing and a diaphragm of a capacitance sensor.
  27. Grudzien,Chris P., Method of forming a seal between a housing and a diaphragm of a capacitance sensor.
  28. Chu,Richard C.; Ellsworth, Jr.,Michael J.; Schmidt,Roger R.; Simons,Robert E.; Zoodsma,Randy J., Method, system and program product for monitoring rate of volume change of coolant within a cooling system.
  29. Quigley, Claudia J.; Lahey, Kerry S.; Mathew, Santhi E.; Maxwell, Jr., J. Robert; Mindlin, Leonid; Poulin, James M.; St. Paul, Gardy, Multi-temperature heater for use with pressure transducers.
  30. Harish,Divyasimha; Dallenbach,William D.; Wong,King; Schultz,John, Multi-zone capacitive force sensing device and methods.
  31. Cucci Gerald R. ; Englund Diane L., Non-contaminating pressure transducer module.
  32. Englund, Diane L.; Cucci, Gerald R., Non-contaminating pressure transducer module.
  33. Englund, Diane L.; Cucci, Gerald R., Non-fluid conducting pressure module having non-contaminating body and isolation member.
  34. Melamed, Ofer, Pressure difference flowmeter with flow barrier between a conduit and a reference tube.
  35. Rashidi, Ardishir, Pressure sensing device.
  36. Jonsson,Steffan, Pressure sensor for detecting small pressure differences and low pressures.
  37. Scaliante, Ademir; Gullo, Geraldo, Sensor assemblies and methods of securing elongated members within such assemblies.
  38. Bowman, Marc; Parker, Aaron, Simplified energy meter configuration.
  39. Benjey Robert P., Solid state fuel level sensing.
  40. Bernklau, James, Split core status indicator.
  41. Caldeira Gilmar M.,BRX, System and method for determining a density of a fluid.
  42. Grudzien,Chris P., Turbo sump for use with capacitive pressure sensor.
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