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Electromagnetic flowmeter 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01F-001/56
출원번호 US-0937595 (1997-09-29)
우선권정보 JP-0279023 (1995-10-26)
발명자 / 주소
  • Sai Yukio,JPX
  • Kubota Yousuke,JPX
출원인 / 주소
  • Kabushiki Kaisha Toshiba, JPX
대리인 / 주소
    Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
인용정보 피인용 횟수 : 52  인용 특허 : 11

초록

An electromagnetic flowmeter generates a magnetic filed perpendicular to a ringearth electrode contacting fluid at an end portion of a measuring tube and a point electrode attached to a lower portion of the measuring tube so as to measure a flow rate without depending on a fluid level. The electroma

대표청구항

[ What is claimed is:] [1.] An electromagnetic flowmeter comprising:magnetic field generation means for generating a magnetic field in a measuring tube, said magnetic field being perpendicular to an axial direction of said measuring tube and perpendicular to a gravitation direction, such that electr

이 특허에 인용된 특허 (11)

  1. Shauger Herbert A. (Willow Grove PA), Analog-to-digital converter for electromagnetic flowmeter.
  2. Kiene Wilfried (Am Fuchsber 33 D-3510 Mnden DEX) Nissen Peter (Birkenweg 1 3405 Rosdorf DEX), Apparatus for measuring the flowrate of a fluid.
  3. Nissen Peter (Rosdorf DEX) Schfer Klaus (Hann Mnden DEX), Device for measuring the flow of fluid through a measuring pipe.
  4. Kiene Wilfried (Munden DEX) Nissen Peter (Rosdorf DEX), Device to measure the flowrate in a partially full line.
  5. Takada Keisuke (Kodaira JPX), Electromagnetic flow meter.
  6. Kiene Wilfried (Munden DEX) Nissen Peter (Rosdorf DEX), Electromagnetic flow meter with weir.
  7. Torimaru Takashi (Musashino JA), Electromagnetic flowmeter.
  8. Yoshida Yutaka (Aichi-Ken JPX), Electromagnetic flowmeter.
  9. Nissen Peter (Rosdorf DEX) Schwiderski Hans W. (Norten-Hardenberg DEX), Flow measuring apparatus.
  10. Yoshida Yutaka (Aichi JPX), Non-full state detecting apparatus and method.
  11. Kobayashi Tamotsu (Yokohama JPX), Signal generator for electromagnetic flowmeter.

이 특허를 인용한 특허 (52)

  1. Jongsma,Jonathon Michael; Huisenga,Garrie David, Analog-to-digital converter with range error detection.
  2. Eryurek, Evren; Warrior, Jogesh, Auto correcting temperature transmitter with resistance based sensor.
  3. Nakatani, Hiroshi; Kimura, Tatsuya; Sameda, Yoshito; Iijima, Takuya; Higuchi, Takashi; Futoo, Makoto; Nojiri, Hiroaki; Nishikawa, Kiyonori; Okamoto, Toshihiko, Capacitative electromagnetic flow meter.
  4. Eryurek, Evren; Kavaklioglu, Kadir, Control system using process model.
  5. Longsdorf, Randy J.; Nelson, Scott D.; Davis, Dale S.; Nelson, Richard L.; Johnson, Amy K.; Brown, Gregory C., Dedicated process diagnostic device.
  6. Rud, Jason H., Degrading sensor detection implemented within a transmitter.
  7. Eryurek, Evren; Warrior, Jogesh, Device in a process system for determining statistical parameter.
  8. Schaetzle, Ralf; Kopp, Manfred, Diagnostic circuit for monitoring an analog-digital converter circuit.
  9. Eryurek, Evren; Esboldt, Steven R.; Rome, Gregory H., Diagnostics for resistive elements of process devices.
  10. Brown, Gregory C.; Schumacher, Mark S., Diagnostics of impulse piping in an industrial process.
  11. Coursolle, Thomas P.; Wehrs, David L., Electrode leakage diagnostics in a magnetic flow meter.
  12. Lucas, Gary P.; Leeungculsatien, Teerachai, Electromagnetic flow meter and method for monitoring fluid flow of a conducting fluid having either a uniform or a non-uniform flow profile.
  13. Ishikawa, Ikuhiko; Oota, Hironobu, Electromagnetic flowmeter.
  14. Saito, Masakazu; Kaneko, Yuichi, Electromagnetic flowmeter.
  15. Itagi, Amit V.; Wiwel, Bernard; Oberg, Russell F., Electromagnetic seed sensor assembly for seed tube planting applications.
  16. Itagi, Amit V.; Wiwel, Bernard; Oberg, Russell F., Electromagnetic seed sensor assembly for seed tube planting applications.
  17. Rome, Gregory H.; Eryurek, Evren; Kavaklioglu, Kadir, Electronics board life prediction of microprocessor-based transmitters.
  18. Huisenga, Garrie D.; Lewis, Richard A.; Lattimer, Donald R., Field device for digital process control loop diagnostics.
  19. Eryurek, Evren; Kavaklioglu, Kadir, Flow diagnostic system.
  20. Wehrs, David L.; Eryurek, Evren, Flow measurement diagnostics.
  21. Eryurek, Evren; Kavaklioglu, Kadir, Flow measurement with diagnostics.
  22. Lincoln, David; Armitage, Michael, Flow meter.
  23. Lincoln, David; Armitage, Michael, Flow meter.
  24. Shimura, Toru, Flowmeter, insulation deterioration diagnosis system, and insulation deterioration diagnosis method.
  25. Brown, Stan; Lininger, Monte, Fluid measurement device and methods of making and using the same.
  26. Borgeson, Dale W.; DelaCruz, Moises A., Hand held diagnostic and communication device with automatic bus detection.
  27. Eryurek, Evren; Gao, Rong; Tsoukalas, Lefteri H., High accuracy signal processing for magnetic flowmeter.
  28. Elke, Anthony Michael, Industrial process temperature transmitter with sensor stress diagnostics.
  29. Rogers, Steven Bruce; Smith, Joseph Alan, Integrally molded magnetic flowmeter.
  30. Schulz, Robert K., Magnetic flow meter with reference electrode.
  31. Rogers, Steven Bruce; Rovner, Bruce D.; Foss, Scot Ronald, Magnetic flowmeter with automatic adjustment based on sensed complex impedance.
  32. Rogers, Steven Bruce, Magnetic flowmeter with multiple coils.
  33. Graber, William F.; Foss, Scot R.; Schulz, Robert K., Magnetic flowmeter with verification.
  34. Brockhaus, Helmut, Magnetoinductive flowmeter and magnetoinductive flow-measuring process.
  35. Brockhaus,Helmut; Florin,Wilhelm, Method for operating a magnetoinductive flowmeter.
  36. Russell, III, Alden C.; Harris, Stuart A.; Peluso, Marcos; Borgeson, Dale W., Multi-protocol field device interface with automatic bus detection.
  37. Eryurek, Evren; Lenz, Gary A.; Kavaklioglu, Kadir, Prediction of error magnitude in a pressure transmitter.
  38. Eryurek,Evren; Kavaklioglu,Kadir, Pressure transmitter with diagnostics.
  39. Eryurek, Evren; Kavaklioglu, Kadir; Esboldt, Steven R., Process device diagnostics using process variable sensor signal.
  40. Eryurek,Evren; Kavaklioglu,Kadir; Esboldt,Steven R., Process device diagnostics using process variable sensor signal.
  41. Huisenga,Garrie D.; Longsdorf,Randy J., Process device with quiescent current diagnostics.
  42. Longsdorf, Randy J.; Blumeyer, Chad C., Process device with vibration based diagnostics.
  43. Brown,Gregory C.; Peluso,Marcos; Karschnia,Robert J., Process diagnostics.
  44. Rud, Jason Harold; Engelstad, Loren Michael, Process variable measurement noise diagnostic.
  45. Sittler, Fred C.; Hedtke, Robert C., Process variable transmitter with acceleration sensor.
  46. Evren Eryurek ; Steven R. Esboldt ; Gregory H. Rome, Resistance based process control device diagnostics.
  47. Eryurek, Evren; Esboldt, Steven R., Resistive element diagnostics for process devices.
  48. Eryurek,Evren; Kavaklioglu,Kadir, Root cause diagnostics.
  49. Miller, John P.; Eryurek, Evren, Rule set for root cause diagnostics.
  50. Wehrs, David L., Spectral diagnostics in a magnetic flow meter.
  51. Eryurek, Evren; Warrior, Jogesh; Esboldt, Steven R., Transmitter with software for determining when to initiate diagnostics.
  52. Huisenga,Garrie D.; Longsdorf,Randy J.; Lattimer,Donald R., Two-wire process control loop diagnostics.
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