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Method and apparatus for optically measuring fluid levels 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01F-023/00
출원번호 US-0029443 (1987-03-23)
발명자 / 주소
  • Christensen Douglas A. (Salt Lake City UT)
출원인 / 주소
  • CV Technology, Inc. (Dallas TX 02)
인용정보 피인용 횟수 : 36  인용 특허 : 0

초록

A non-metallic fiber-optic device is provided for measuring the level of fluid in a tank, reservoir, or other vessel. Light from a broadband light source is transmitted through a fiber optic waveguide and an optical coupler to an optical pipe sensor which is immersed in the fluid to be measured. The

대표청구항

A fluid level measuring apparatus, comprising: a broadband radiant energy source; an elongate sensor having a length immersible in the fluid; a means for transmitting radiant energy from said source to said sensor; said sensor including means for converting said broadband radiant energy to a radiant

이 특허를 인용한 특허 (36)

  1. Luzzader Wayne, Apparatus and method for achieving intrinsic safety using conventional sensors.
  2. Jones, Owen John Lloyd; O'Doherty, Francis; Saevareide, Tor Magnus, Apparatus and method for determining a level of a fluid within a vessel.
  3. Handke Wayne A. (Duncan OK), Automatic rate matching system.
  4. Fling,John J.; Fling,William F., Automatically actuated liquid level sensor.
  5. Glover Edward Charles,GBX ; Glover Martyn Stuart,GBX, Collection of process effluent.
  6. Baker,Jay D.; Shi,Zhong You; Kneisel,Lawrence L., Communication system with a signal conduction matrix and surface signal router.
  7. Oliver, William H.; Nichols, Randall W., Cooking apparatus and method.
  8. Liu, Yangang; Wang, Tung Rung; Nguyen, Ian; Pfeifer, Shirley; McNeal, Jack, Device and method for preliminary testing a neat serum sample in a primary collection tube.
  9. Bartkiewicz Luke, Differential level hydrometer.
  10. Andrejasich Raymond J. (Carmel IN) Slocum Laurence S. (Indianapolis IN) Mussmann Sara M. (Indianapolis IN), Differential pressure level sensor with temperature sensing elements.
  11. Mentzer, Mark A.; Petrillo, Nicholas P.; Webb, Wayne A., Electro-optic fluid quantity measurement system.
  12. Danisch Lee A. (422 Northumberland Street Fredericton ; New Brunswick CAX E3B 3K4), Fiber optic liquid level sensor.
  13. Walker Ray Allen, Fluid level sensing system and method having controlled surface pairs.
  14. Weiss, Jonathan D., Fluorescent fluid interface position sensor.
  15. Niezgorski, Richard M.; Ogle, Peter C., Housing on the exterior of a well casing for optical fiber sensors.
  16. Graham Harry Moss GB; Steven James Chapman GB, Illumination system.
  17. Kumar, Lalit Al; Brown, Rollin W.; Williams, Richard T.; Gras, Jr., Peter Simonds, Integrated active fuel characteristic sensor.
  18. Shi, Zhong-You; Marlow, C. Allen, LCC-based fluid-level detection sensor.
  19. Fling,John J.; Fling,William F., Mechanically self actuated liquid level sensor.
  20. DiFoggio,Rocco; Walkow,Arnold; Bergren,Paul; Perez,Louis, Method and apparatus for a downhole refractometer and attenuated reflectance spectrometer.
  21. le Squin Guy (Chalon/Saone FRX) Laurent Dominique (Torcy FRX), Method and apparatus for automatically reading a mechanical fluid meter.
  22. Zhao, Xiaomin; Bostick, Francis X.; Wu, Jian-Qun; Gysling, Daniel L.; Ogle, Peter C.; Davis, Allen R.; Kersey, Alan D.; Hardage, Bob A., Method and apparatus for seismically surveying an earth formation in relation to a borehole.
  23. Modlin Douglas N. ; Jansen Jan Frederik ; Jansen Renee, Optical level sensor.
  24. Clark Reece R. (Redwood City CA) Barmore ; Jr. Gaston C. (Pearland TX), Optical tank-level gauge.
  25. Wirthlin,Alvin R., Optical transducer for continuously determining liquid level.
  26. Shi, Zhong-You; Meyer, Bernard A.; Singh, Harvinder; Baker, Jay DeAvis; Kneisel, Lawrence Leroy; McMillan, Richard Keith; Steinert, David James, Optically controlled IPCS circuitry.
  27. Dietz, Paul; Eidelson, Benjamin David, Optically monitoring fullness of fluid container.
  28. Fling,John J.; Fling,William F., Parallelogram actuated liquid level sensor.
  29. Narendran Nadarajah, Passive optical wavelength analyzer with a passive nonuniform optical grating.
  30. Dieterle, Levin, Radar beam deflection unit for a radar level indicator.
  31. Zellers Anthony, Remote water level detector for a fire truck.
  32. Mentzer, Mark A.; Petrillo, Nicholas P.; Webb, Wayne A.; Trostle, Brian S., Systems and methods for determining level and/or type of a fluid.
  33. Bower John R. (Lynchburg VA) Powers Thomas (Lynchburg VA) Whaley Hubert L. (Lynchburg VA), Ultrasonic method and apparatus for determining water level in a closed vessel.
  34. Sapack Michael A., Vertical seismic profiling system having vertical seismic profiling optical signal processing equipment and fiber Bragg grafting optical sensors.
  35. Aemisegger, Steve; Hodel, Thomas; Lang, Markus; Möri, Peter; Moser, Renzo; Schenk, Rudolf, Water circulation system for a beverage preparation device.
  36. Ogle, Peter C., Well integrity monitoring system.
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