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[미국특허] Eddy current clearance transducing system 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01N-027/72
  • G01N-029/00
  • G01B-007/14
  • G01R-033/00
출원번호 US-0904979 (1986-09-08)
발명자 / 주소
  • Langley Lawrence W. (910 Cardinal Dr. Christiansburg VA 24073)
인용정보 피인용 횟수 : 35  인용 특허 : 9

초록

A system combining a transducer and a signal processing circuit measures the clearance distance from the transducer to an electrically conductive moving part of a machine. The transducer contains a magnet and a coil, both coupled magnetically to a region traversed by the machine part. Eddy currents

대표청구항

CM,1. A device for indicating a dimension of an electrically conductive moving part of a machine, comprising: (a) a magnet having two poles for producing a static field of magnetic flux in a region traversed by said moving part; (b) a coil inductively coupled to said region for producing a signal fr

이 특허에 인용된 특허 (9) 인용/피인용 타임라인 분석

  1. Mossey Paul W. (Greenhills OH), Apparatus and method for optical clearance determination.
  2. Gallant George A. (Burlington VT), Eddy current sensor.
  3. Slough ; Carlton M., Electromagnetic means and method for detecting propeller shaft bearing wear.
  4. Rolfe Norman F. (Carlisle MA), Magnetic clearance sensor.
  5. Naegeli John P. (Winterthur CHX) Maurer Andreas (Seuzach CHX), Method and apparatus for monitoring the state of oscillation of the blades of a rotor.
  6. Fry Werner (Basel CHX) Martin Henry (Allschwil CHX) Pissiotas Georg (Lrrach DEX), Oxime derivatives for protecting plant crops.
  7. Oates Robert M. (Murrysville PA) Petronio Carlo F. (Ross Township ; Allegheny County PA) Kraus Mark G. (Churchill Boro PA), Plural sensor apparatus for monitoring turbine blading with undesired component elimination.
  8. Baker, Peter D., Proximity sensing.
  9. Garrott William L. (Gainesville FL), Static magnetic field metal detector.

이 특허를 인용한 특허 (35) 인용/피인용 타임라인 분석

  1. Slates, Richard D., Apparatus for determining a gap between a proximity probe component and a conductive target material.
  2. Slates, Richard D., Apparatus for determining dynamic gaps between a proximity probe and a conductive target material.
  3. Slates, Richard D., Apparatus for determining gaps between a proximity probe and a conductive target material.
  4. Roeseler,Corydon C.; Von Flotow,Andreas H.; Lewit,Benjamin, Blade detection sensor having an active cooling system.
  5. John, Shaju, Clearance detection system and method using frequency identification.
  6. Pattantyus Tamas Imre, Custom integrated wheel-speed sensor circuit with sensitivity adjustment.
  7. Deller Robert W. ; Heagey Robert, Demodulator circuit for use with a displacement sensor to provide position information.
  8. Penny William A.,GBX, Device for sensing eddy currents in moving bodies.
  9. Rich Slates, Digital eddy current proximity system: apparatus and method.
  10. Slates, Richard D., Digital eddy current proximity system: apparatus and method.
  11. Barclay John T. ; Maness Phillip L. ; Bannach Leroy R., Digitally linearizing eddy current probe.
  12. Kawasaki, Norifumi; Kita, Hideo, Eddy current detection of wheel speed with voltage threshold shifting.
  13. Krupp,Roy S., Eddy current sensor capable of sensing through a conductive barrier.
  14. Roy, Subrata, Electrodynamic control of blade clearance leakage loss in turbomachinery applications.
  15. Hoyte, Scott Mordin; Ferguson, Jeremiah Robert, Method and apparatus for using eddy current transducers in magnetic fields.
  16. Slates, Richard D., Method for digitally measuring electrical impedance.
  17. Slates, Richard D., Method for measuring a characteristic of a conductive target material using a proximity probe.
  18. Slates, Rich, Method for measuring a gap between a proximity probe and a conductive target material.
  19. Slates, Richard D., Method for measuring a gap between a proximity probe and a conductive target material.
  20. Slates, Richard D., Method for measuring a gap between a proximity probe and a conductive target material.
  21. Slates, Richard D., Method for measuring a gap between a proximity probe and a conductive target material.
  22. Slates, Richard D., Method for measuring a gap between a proximity probe and a conductive target material.
  23. Slates, Richard D., Method for measuring a gap between a proximity probe and a conductive target material.
  24. Slates, Richard D., Method for measuring a gap between a proximity probe and a conductive target material.
  25. Slates, Richard D., Method for measuring a position of a conductive target material.
  26. Prinz, Friedrich B.; Kang, Sangkyun; Fabian, Tibor; Brasseur, Georg; Tresser, Jordan; Holman, Francis; Tsuru, Hideaki; Matsunaga, Minoru, Micro gas turbine engine with active tip clearance control.
  27. Bores Hans-Jochen,DEX ; Gloger Meinrad,DEX ; Jung Michael,DEX, Monitoring system for representing vibration conditions of a multiplicity of blades on a rotating disc.
  28. Andarawis,Emad Andarawis; Dasgupta,Samhita; Mani,Shobhana; Chen,Weiguo, Multi tip clearance measurement system and method of operation.
  29. Roeseler, Cory; von Flotow, Andreas H., Passive eddy current blade detection sensor.
  30. Coyle, Sean; Dagnall, Christopher; Barnes, Andrew; Doggett, Anthony; Wood, Dean, Portable data collector and analyzer: apparatus and method.
  31. Terpay Gregory Weston, Shielded eddy current sensor for enhanced sensitivity.
  32. Ren, Zhiyuan; Hasz, Wayne Charles; Andarawis, Emad Andarawis; Chan, David So Keung; Shaddock, David Mulford; Down, John Harry; Dasgupta, Samhita; Herron, William Lee; Herron, legal representative, Cheryl Lynn; Parry, David Walter; Esler, David Richard; Balasubramaniam, Mahadevan, System and method for clearance estimation between two objects.
  33. Furman, Anthony; Bhattacharya, Aninda; Malone, Matthew John; Panicker, Mahesh Raveendranatha, System and method of determining bearing health in a rotating machine.
  34. Ledoux, Thomas; Martin, Denis; Meneroud, Patrick; Michaud, Grégory, System for determining the thickness of a layer of rubber for a tire.
  35. Sheikman, Boris; Howard, Jack E.; Rank, Brandon; Jensen, Raymond Verle, Systems, methods, and apparatus for monitoring clearance in a rotary machine.

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