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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Auto-compensating capacitive level sensor

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01F-023/26    G01F-023/00   
미국특허분류(USC) 073/304.006; 073/290.R
출원번호 US-0888949 (2001-06-25)
발명자 / 주소
  • Livingston, Richard A.
  • Chamberlain, Roger D.
출원인 / 주소
  • Becs Technology, Inc.
대리인 / 주소
    Bryan Cave LLP
인용정보 피인용 횟수 : 52  인용 특허 : 13
초록
▼

A capacitive sensor array is adapted to be disposed in a reservoir containing fluid or material along an axis of measurement of the fluid or material to determine the level of fluid or material contained within the reservoir. The sensor array includes a plurality of reference electrodes, wherein the capacitance of each of the electrodes varies in accordance both with the extent of the array's immersion in the fluid or material and the dielectric constant of the fluid or material. The plurality of reference electrodes preferably includes a lower electrode...

대표
청구항
▼

A capacitive sensor array is adapted to be disposed in a reservoir containing fluid or material along an axis of measurement of the fluid or material to determine the level of fluid or material contained within the reservoir. The sensor array includes a plurality of reference electrodes, wherein the capacitance of each of the electrodes varies in accordance both with the extent of the array's immersion in the fluid or material and the dielectric constant of the fluid or material. The plurality of reference electrodes preferably includes a lower electrode...

인용문헌 (13)

  1. Berrill Michael J.,GB6, Capacitance probe.
  2. Hart John R. (Lexington OH), Capacitive fluid level sensor.
  3. Wells Paul (Newberg OR), Capacitive fluid level sensor.
  4. Koga Sadamichi (Ome JPX), Capacitive level sensor.
  5. McCulloch L. Michael ; Bruer Richard E. ; Byram Thomas P., Capacitive level sensor and control system.
  6. Goekler Lewis E. (Cincinnati OH), Capacitive liquid level sensor.
  7. Wood Tony J. (Ann Arbor MI), Capacitive liquid level sensor.
  8. Shillady Robert W. (N. Wales PA), Capacitive liquid level sensor having phase detecting circuitry.
  9. Kronberg James W., Closed-field capacitive liquid level sensor.
  10. Berryman Walter H. (Croydon AUX) Manson Peter J. (Hawthorn AUX) Hamley Adrian H. (Chirnside Park AUX) Korb Joseph (North Geelong AUX), Device for the capacitive measurement of levels.
  11. Lee Calvin S. (Rancho Santa Margarita CA) Tousson Eliahou (Van Nuys CA), Digital level sensing probe system.
  12. Goekler Lewis E. (Cincinnati OH) Chamberlin Edward R. (Loveland OH), Fluid level sensor having capacitive sensor.
  13. Mulder Richard (Venkelstraat 8 3252 BV Goedereede NLX), Gauge for measuring the level or the conductance of a liquid present between two electrodes.

이 특허를 인용한 특허 (52)

  1. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Westermann-Rasmussen, Peter; Kjaer, Gert; Lungeanu, Florin, Anti-entrapment and anti-dead head function.
  2. Sanchez Pina, Jose L.; Sanchez, Ramon A, Apparatus and method for measuring fluid characteristics.
  3. Harper, Gregory C.; Batenburg, Gregory A.; Schranz, Paul S., Apparatus and method for volume and mass estimation of a multiphase fluid stored at cryogenic temperatures.
  4. Chai,John Y.; Chai,Sunny N.; Ko,Derek C., Apparatus and methods for monitoring water consumption and filter usage.
  5. Boese, Thomas G.; Bishop, Michael B.; Ambrose, Jeffrey C.; Emerson, John; Paton, David E.; Mazza, Joseph J., Battery backup sump pump systems and methods.
  6. Mears, Barry C., Calibration-free continuous bin level sensor.
  7. Ketelhohn,Charlie; Zimprich,Robert; Griesemer,Pat, Capacitance-based fluid level sensor.
  8. Wiederkind-Klein, Alexander, Contactless filling level measurement of liquids.
  9. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Robol, Ronald B.; Cox, Everett; Steen, Donald; Murphy, Kevin; Hruby, Daniel J.; Westermann-Rasmussen, Peter; Kjaer, Gert; Harvest, Nils-Ole; Yahnker, Christopher; Woodcock, Jr., Walter; Runarsson, Einar Kjartan; Hansen, Arne Fink; Morando, Alberto; Lungeanu, Florin, Control algorithm of variable speed pumping system.
  10. Stiles, Jr., Robert W.; Robol, Ronald B.; Berthelsen, Lars Hoffmann; Harvest, Nils-Ole; Cox, Everett; Steen, Donald; Murphy, Kevin; Hruby, Daniel J.; Westermann-Rasmussen, Peter; Kjaer, Gert, Control algorithm of variable speed pumping system.
  11. Robol, Ronald B.; Hruby, Daniel J.; Colvin, Johnathan Steven, Discharge vacuum relief valve for safety vacuum release system.
  12. Mann, John C., Electronic stylus with low skew tip for capacitive touch screens.
  13. Woodard,Stanley E.; Taylor,Bryant D., Flexible framework for capacitive sensing.
  14. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Westermann-Rasmussen, Peter; Kjaer, Gert; Lungeanu, Florin, Flow control.
  15. Radhakrishnan, Suresh; Woods, Scott Alan; Biba, Scott, Fluid level measuring device for a beverage dispenser.
  16. Radhakrishnan, Suresh; Woods, Scott Allan; Biba, Scott, Fluid level measuring device for a beverage dispenser.
  17. Vilag, Brian Vincent; Mierzejewski, Kenneth, Fluid level sensor.
  18. Chase, Kevin M.; Janke, Brian P.; Ashrafzadeh, Farhad; Kanchanavally, Shreecharan; Kerner, James, Hands free, controlled autofill for a dispenser.
  19. Chase, Kevin M.; Janke, Brian P.; Ashrafzadeh, Farhad; Kanchanavally, Shreecharan; Kerner, James, Hands free, controlled autofill for a dispenser.
  20. Chase, Kevin M; Janke, Brian P; Ashrafzadeh, Farhad; Kanchanavally, Shreecharan; Kerner, James, Hands free, controlled autofill for a dispenser.
  21. Chase, Kevin M; Janke, Brian P; Ashrafzadeh, Farhad; Kanchanavally, Shreecharan; Kerner, James, Hands free, controlled autofill for a dispenser.
  22. Peterson, Gregory A.; Ensinger, James W., Liquid level sensor for appliance and associated method.
  23. Kataoka, Chiaki; Akagi, Masaki, Liquid state detection sensor.
  24. Shimura, Jusuke, Liquid tank and fuel cell.
  25. Naydenov, Volodia, Measuring a liquid level in a tank with two measurement capacitors and two reference capacitors.
  26. Bertoni, Cristina; Uhov, Andrei; Zanon, Elvio, Method for dispensing a liquid into a container and related dispenser.
  27. Kidd, Melissa Drechsel; Genaw, William James; Pasche, Micheal Robert; Baase, II, Gary Thomas; Berthelsen, Lars Hoffmann; Fink, Rasmus; Holm, Martin Skov, Method of controlling a pump and motor.
  28. Koehl, Robert M., Pump controller system and method.
  29. Koehl, Robert M., Pump controller system and method.
  30. Koehl, Robert M., Pump controller system and method.
  31. Koehl, Robert M., Pump controller system and method.
  32. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Robol, Ronald B.; Yahnker, Christopher; Hruby, Daniel J.; Murphy, Kevin; Runarsson, Einar Kjartan; Hansen, Arne Fink; Lungeanu, Florin; Westermann-Rasmussen, Peter, Pumping system with housing and user interface.
  33. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Robol, Ronald B.; Yahnker, Christopher; Runarsson, Elnar Kjartan, Pumping system with power optimization.
  34. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Robol, Ronald B.; Yahnker, Christopher R.; Hruby, Daniel J.; Murphy, Kevin; Brown, Edward; MacCallum, David; Dunn, Dennis; Clack, Kenneth; Runarsson, Einar Kjartan; Morando, Alberto, Pumping system with two way communication.
  35. Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann, Safety vacuum release system.
  36. Farmanyan, Gagik, Self-calibrating capacitive liquid level sensor assembly and method.
  37. Calcote, Clyde, Self-calibrating capacitive transducer for determining level of fluent materials.
  38. Calabrese, Ronald V., Self-calibrating liquid level transmitter.
  39. Calabrese,Ronald V., Self-calibrating liquid level transmitter.
  40. Calabrese,Ronald V., Self-calibrating liquid level transmitter.
  41. Chase, Kevin M.; Jeffery, Randell L.; Nibbelink, Matthew J.; Wendling, Brian; Mehta, Rahul; Kadchhud, Vashishtha; Hatch, Greg; Fatunde, Morounkeji, Sensor system for a refrigerator dispenser.
  42. Richmond, Peter J.; Ghent, Bob A.; Lange, Chad, Sensor system for a refrigerator dispenser.
  43. Mann, John Conrad, Stylus and stylus circuitry for capacitive touch screens.
  44. Mann, John Conrad, Stylus and stylus circuitry for capacitive touch screens.
  45. Mehlhorn,William L., Switch assembly, electric machine having the switch assembly, and method of controlling the same.
  46. Woodard,Stanley E.; Taylor,Bryant D., System and method for wirelessly determining fluid volume.
  47. Vanderzee,Joel C., Variable frequency charge pump in capacitive level sensor.
  48. Wang, Xinxin, Water content sensing system for ink/water emulsion of lithographic printer.
  49. McDermid, John, Water measurement apparatus and methods.
  50. McDermid,John, Water measurement auto-networks.
  51. Taylor,Bryant D.; Woodard,Stanley E., Wireless fluid level measuring system.
  52. Heger,Charles E., Wireless swimming pool water level system.

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