Invention Grant
US08126662B2 Method and apparatus for monitoring blade vibration with a fiber optic ribbon probe 有权
用光纤丝带探头监测叶片振动的方法和装置

  • Patent Title: Method and apparatus for monitoring blade vibration with a fiber optic ribbon probe
  • Patent Title (中): 用光纤丝带探头监测叶片振动的方法和装置
  • Application No.: US12360897
    Application Date: 2009-01-28
  • Publication No.: US08126662B2
    Publication Date: 2012-02-28
  • Inventor: Michael Twerdochlib
  • Applicant: Michael Twerdochlib
  • Applicant Address: US FL Orlando
  • Assignee: Siemens Energy, Inc.
  • Current Assignee: Siemens Energy, Inc.
  • Current Assignee Address: US FL Orlando
  • Main IPC: G06F11/00
  • IPC: G06F11/00
Method and apparatus for monitoring blade vibration with a fiber optic ribbon probe
Abstract:
A method and apparatus for monitoring blade vibrations in a turbine engine having blade tip target portions associated with blades. An illumination conduit including a plurality of optical fibers conveys light from a light source to a transmission end of the optical fibers where the light is focused to define an axially elongated projected image. The blade tip target portions pass through the projected image and reflect light to receptor ends of a plurality of optical fibers defining a detection conduit for conveying the reflected light to a processor. The transmission ends and receptor ends of the optical fibers are configured as a narrow rectangle to define a probe end for receiving reflected light at different axial locations along the probe end, and to detect blade passing events defined by passage of either or both a blade leading edge and a blade trailing edge.
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