| Patent application number | Description | Published |
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| 20080218758 | METHOD, SYSTEM AND MODULE FOR MONITORING A POWER GENERATING SYSTEM - A sensing module positioned about an optical fiber cable having a long axis. The optical fiber includes a core that transmits light through the optical fiber cable. The sensing module includes a first short-period fiber grating positioned about the core. A second short-period fiber grating is positioned about the core and at a distance along the long axis with respect to the first short-period fiber grating. At least one of a long-aperiod fiber grating and a long-period fiber grating is positioned between the first short-period fiber grating and the second short-period fiber grating. A fiber cladding is positioned around the long-period grating and/or the long-aperiod grating of the sensing module. A sensing skin is positioned about the fiber cladding and includes a chemical gas active material. | 09-11-2008 |
| 20080219618 | METHODS OF MAKING AND OPERATING A FIBER OPTIC SENSING DEVICE - In accordance with one exemplary embodiment the invention provides a multi-parameter fiber optic sensing system with an aperiodic sapphire fiber grating as sensing element for simultaneous temperature, strain, NO | 09-11-2008 |
| 20090074347 | FIBER BRAGG GRATING FOR HIGH TEMPERATURE SENSING - A method of fiber core material band gap engineering for artificially modifying fiber material properties is provided. The method includes doping the fiber core material with one or more atoms for enhancing photosensitivity to the fiber material. The method also includes co-doping the fiber core material with one or more ions for enhancing an amorphous network crosslink mean coordination number. The method further includes thermally annealing the fiber core material for widening the band gap of the fiber core material. | 03-19-2009 |
| 20090074348 | HARSH ENVIRONMENT TEMPERATURE SENSING SYSTEM AND METHOD - A gasification distributed temperature sensing system is disclosed. The sensing system includes a gasification vessel and a harsh environment fiber sensing cable package disposed within the gasification vessel, the sensing cable package includes a thermally conductive enclosure and at least one sensor cable including a distributed array of high-temperature fiber Bragg grating sensors, wherein the sensors are disposed and hermetically sealed within the thermally conductive enclosure. | 03-19-2009 |
| 20090087303 | EMBEDDED FIBER OPTIC SENSING DEVICE AND METHOD - A device operating in an environment includes a fiber optic sensing system having one or more fiber optic sensors disposed in the device and configured to detect one or more parameters related to the device. The parameters may include temperature, strain, pressure, vibration, or combinations thereof. | 04-02-2009 |
| 20090320609 | Turbomachinery system fiberoptic multi-parameter sensing system and method - 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. | 12-31-2009 |
| 20100074572 | FIBER OPTIC SENSING DEVICE AND METHOD - A device includes a stationary, rotary component, and a fiber optic sensing system. The fiber optic sensing system includes a cable having one or more fiber optic sensors disposed on the stationary component, the rotary component, or combinations thereof. The fiber optic sensing system is configured to detect one or more first parameters including temperature, strain, pressure, vibration, torque; or combinations thereof related to the stationary component, the rotary component, or combinations thereof. The one or more first parameters is used to determine one or more second parameters including thermal expansion, clearance, fluid flow rate variation, condensation, fluid leakage, thermal loss, life, thermal stress, or combinations thereof related to the stationary component, the rotary component, or combinations thereof. | 03-25-2010 |
| 20100080500 | FIBEROPTIC CLEARANCE DETECTION SYSTEM AND METHOD - A fiberoptic system for clearance detection between rotating and stationary turbomachinery components is presented. The system comprises an optical fiber probe comprising a plurality of optical fibers, at least one of the optical fibers comprising a transmission fiber and at least one of the optical fibers comprising a signal fiber; a light source for providing light through the transmission fiber towards a target; filters for receiving light from the signal fibers, at least two of the filters for filtering different wavelengths; and at least one photodetector for receiving filtered light from the filters. | 04-01-2010 |
| 20100247026 | PACKAGED SENSORS AND HARSH ENVIRONMENT SYSTEMS WITH PACKAGED SENSORS - A fiber sensor package is disclosed. The fiber sensor package includes an interconnection between a first optical fiber and a second optical fiber within a tubing such that the first and second optical fibers are at least partially disposed within that tubing. A bonding material is disposed across an edge of the interconnection around at least a part of the circumferential surfaces of the first and second fibers, holds rigid the interconnection of the first and second optical fibers. The methods of preparing the package, and the examples of systems benefiting from the fiber sensor package of this invention are also described. | 09-30-2010 |
| 20100247027 | OPTICAL SENSORS, SYSTEMS, AND METHODS OF MAKING - An optical fiber sensing cable is disclosed. The optical fiber sensing cable comprises a fiber with a core having an index of refraction n | 09-30-2010 |
| 20100257838 | MODEL BASED HEALTH MONITORING OF AERODERIVATIVES, ROBUST TO SENSOR FAILURE AND PROFILING - A method for monitoring the health of a turbine is provided. The method comprises monitoring a turbine engine having a plurality of engine modules and determining one or more health estimates, which may included trended data, for one or more of the engine modules, based on a plurality of engine parameters. The method further determining and transmitting appropriate notifications that indicate repairs to be made to the turbine engine. | 10-14-2010 |
| 20100287906 | FIBER-OPTIC DYNAMIC SENSING MODULES AND METHODS - A fiber-optic dynamic sensing module comprises a support member, a beam extending from the support member, and a pre-strained fiber Bragg grating sensor and a strain-free fiber Bragg grating sensor mounted on the beam. The pre-strained and strain-free fiber Bragg grating sensors each comprise a Bragg grating inscribed in a fiber. The Bragg grating of the pre-strained fiber Bragg grating sensor is packaged more tightly along a longitudinal direction of the beam than the Bragg grating of the strain-free fiber Bragg grating sensor. | 11-18-2010 |
| 20100290733 | FIBER BRAGG GRATING SENSING PACKAGE AND SYSTEM FOR GAS TURBINE TEMPERATURE MEASUREMENT - A fiber Bragg grating multi-point temperature sensing system comprises a fiber sensing cable package and a plurality of clamping devices distributed along an inner surface of a wall in a circumferential direction for securing the fiber sensing cable package. The fiber sensing cable package comprises a fiber Bragg grating based sensing cable comprising at least one optical fiber, a plurality of Bragg gratings inscribed in the optical fiber, and a fabric layer and a sheath tube surrounding the optical fiber. The multi-point fiber temperature sensing system comprises a light source for transmitting light to the Bragg gratings based sensing cable package, and a detector module receiving reflected signal. Each clamping device comprises a radiation tee and defines at least one mounting hole for securing the fiber sensing cable. | 11-18-2010 |
| 20110170823 | FIBER OPTIC SENSOR FOR DETECTING MULTIPLE PARAMETERS IN A HARSH ENVIRONMENT - A fiber optic sensor is provided. The fiber optic sensor includes a fiber core having a plurality of grating elements wherein, the grating elements comprise a periodic or a quasiperiodic modulated microcrystalline and silicon dioxide tetrahedral structure and a cladding disposed about the fiber core. | 07-14-2011 |
| 20110282500 | SYSTEM AND METHOD FOR ENHANCEMENT OF POWER GENERATION FACILITIES - A system and method for enhancing operation of a power generation system. The method includes receiving forecasts at a predictive control unit. The method also includes accessing via a controller real-time lifing models or near real-time lifing models in the predictive control unit. Additionally, the method includes accessing via the controller an enhancer configured to simulate operation of a power generating unit in the power generation system to generate an enhancement of the power generation system based on the forecasts and the real-time or near real-time lifing models. | 11-17-2011 |
| 20120201489 | FIBEROPTIC CLEARANCE DETECTION METHOD AND OPTICAL FIBER PROBE USED THEREIN - A method includes transmitting light through at least one transmission optical fiber towards a target, receiving light reflected from the target through at least one signal optical fiber, filtering the received light at least two different wavelengths, and using the filtered light to detect a clearance variation. An optical fiber probe includes a plurality of optical fibers, a moisture-resistant enclosure enclosing the optical fibers, a hydrophobic layer situated over an end of the optical fiber probe for preventing moisture from reaching the optical fibers, and a broadband transmission layer between ends of the optical fibers and the hydrophobic layer. | 08-09-2012 |
| 20140031957 | SYSTEMS AND METHODS FOR CONTROL RELIABILITY OPERATIONS - In one embodiment, a system includes a data collection system configured to collect a data from a control system. The system further includes a configuration management system configured to manage a hardware configuration and a software configuration for the control system based on the data. The system additionally includes a rule engine configured to use the data as input and to output a health assessment by using a rule database, and a report generator configured to provide a health assessment for the control system. | 01-30-2014 |
| 20140031958 | SYSTEMS AND METHODS FOR RULE-BASED CONTROL SYSTEM RELIABILITY - In one embodiment, a system includes system includes a data collection system configured to collect a data from a control system. The system further includes a configuration management system configured to manage a hardware configuration and a software configuration for the control system based on the data. The system additionally includes a rule engine configured to use the data as input and to output a health assessment by using a rule database configured to store at least one rule, and a report generator configured to provide a health assessment for the control system. The system also includes a rule editor configured to create the at least one rule, update the at least one rule, delete the at least one rule, or a combination thereof. | 01-30-2014 |
| 20140032169 | SYSTEMS AND METHODS FOR IMPROVING CONTROL SYSTEM RELIABILITY - In one embodiment, a system includes system includes a data collection system configured to collect a data from a control system. The system further includes a configuration management system configured to manage a hardware configuration and a software configuration for the control system based on the data. The system additionally includes a rule engine configured to use the data as input and to output a health assessment by using a rule database configured to store at least one rule, and a report generator configured to provide a health assessment for the control system. The system also includes a rule editor configured to create the at least one rule, update the at least one rule, delete the at least one rule, or a combination thereof. | 01-30-2014 |
| 20140032172 | SYSTEMS AND METHODS FOR HEALTH ASSESSMENT OF A HUMAN-MACHINE INTERFACE (HMI) DEVICE - A system includes a human machine interface (HMI) health advisor system including a health advisor suite having a processor. The processor of the health advisor suite is configured to receive operational data regarding a HMI device, wherein the operational data includes configuration data, log data, or a combination thereof. The processor is also configured to apply a plurality of rules to the operational data to proactively determine a HMI issue. The processor is also configured to identify a solution to the HMI issue from a plurality of known solutions to HMI issues. The processor is further configured to generate a configuration report for the HMI device based on the configuration data and to generate a health assessment report for the HMI device. Additionally, the health assessment report comprises the HMI issue and the solution to the HMI issue. | 01-30-2014 |
| 20140032470 | SYSTEMS AND METHODS FOR CONTROL RELIABILITY OPERATIONS - In one embodiment, a system includes a data collection system configured to collect a data from a control system by using an offline mode of operations. The system further includes a configuration management system configured to manage a hardware configuration and a software configuration for the control system based on the data. The system additionally includes a rule engine configured to use the data as input and to output a health assessment by using a rule database, and a report generator configured to provide a health assessment for the control system. | 01-30-2014 |
| 20140056705 | LOAD CONTROL SYSTEM AND METHOD FOR WIND TURBINE - A load control system for a wind turbine and a method for controlling wind turbine loading are provided. The system includes a sensor assembly. The sensor assembly includes a light source mounted to a rotor shaft and configured to emit a light, and a sensor mounted to the rotor shaft and configured to sense the light and measure a location of the light in a plane perpendicular to a longitudinal axis. The system further includes a controller communicatively coupled to the sensor assembly. | 02-27-2014 |
| 20140172346 | SYSTEMS AND METHODS FOR PERFORMING REDUNDANCY TESTS ON TURBINE CONTROLS - A computing device for use in performing a redundancy test on a turbine assembly and a turbine control system including a plurality of controllers each configured to independently control operation of the turbine assembly is provided. The computing device configured to be coupled to the turbine control system and configured to determine whether a plurality of test conditions are satisfied, display to a user an indication of which test conditions are satisfied, and test, in response to a user input, the plurality of controllers. | 06-19-2014 |
