Turbomachinery system fiberoptic multi-parameter sensing system and method
First Claim
1. A method of sensing turbomachinery system shaft static and dynamic torques, vibration modes and associated operation status, the method comprising:
- transmitting light to a plurality of shaft surface locations on a turbomachinery system via a plurality of optical fiber bundles, the plurality of shaft surface locations arranged in a substantially axial direction between the ends of at least one shaft, such that a plurality of dynamic reflected light signals are received from the plurality of shaft surface locations while at least one shaft is rotating; and
determining at least one turbomachinery system shaft torque or vibration characteristic based on at least one characteristic of the dynamic reflected light signals received from the shaft surface.
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Accused Products
Abstract
A fiberoptic multi-parameter sensing system for monitoring turbomachinery system shaft static and dynamic torques, vibration modes and associated operation status includes a multi-furcated fiber bundle based optical splitter configured to transmit light to a surface of at least one turbomachinery system shaft through a plurality of optical fiber bundles disposed at a plurality of locations in proximity to the surface of the at least one shaft, in which the plurality of locations together are arranged in a substantially axial direction between the ends of the at least one shaft. The system further includes an array of high-temperature bifurcated fiber bundle based reflectance probes to receive reflectance signals from the shaft surface and send to an array of photosensitive detectors, configured to detect dynamic light reflected from the at least one turbomachinery system shaft surface in response to the transmitted light during rotation of at least one turbomachinery system shaft and generate dynamic reflected light signals there from. A sensing mechanism is configured to determine a torque or vibration on at least one turbomachinery system shaft in response to the dynamic reflected light signal signatures based on time-domain and frequency-domain signal processes.
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Citations
32 Claims
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1. A method of sensing turbomachinery system shaft static and dynamic torques, vibration modes and associated operation status, the method comprising:
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transmitting light to a plurality of shaft surface locations on a turbomachinery system via a plurality of optical fiber bundles, the plurality of shaft surface locations arranged in a substantially axial direction between the ends of at least one shaft, such that a plurality of dynamic reflected light signals are received from the plurality of shaft surface locations while at least one shaft is rotating; and determining at least one turbomachinery system shaft torque or vibration characteristic based on at least one characteristic of the dynamic reflected light signals received from the shaft surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system for sensing turbomachinery system shaft static and dynamic torques, vibration modes and associated operation status, the sensing system comprising:
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a light source configured to transmit light to a surface of at least one turbomachinery system shaft through a plurality of optical fiber bundles disposed at a plurality of locations in proximity to the surface of the at least one shaft, the plurality of locations together arranged in a substantially axial direction between the ends of the at least one shaft; an array of photodetectors, CCD or CMOS detectors configured to detect dynamic light reflected from the at least one turbomachinery system shaft surface in response to the transmitted light during rotation of the at least one turbomachinery system shaft and generate dynamic reflected light signals there from; and a sensing mechanism configured to determine a torque or vibration on the at least one turbomachinery system shaft in response to the dynamic reflected light signal signatures or pattern recognition based on time-domain and frequency-domain signal processes. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification