General Electric Company

Ge-hitachi Nuclear Energy Americas LLC

Glen Peter Koste

Sachin Narahari Dekate

Hua Xia

Joseph Alfred Iannotti

Todd Ryan Tolliver

Boon Kwee Lee

Ronald Dean Watkins

Richard Louis Frey

John Erik Hershey

Charles Erklin Seeley

Renato Guida

Michael Joseph Schutten

Matthew Christian Nielsen

Mahadevan Balasubramaniam

Robert Louis Steigerwald

Christopher James Kapusta

William Albert Challener

Slawomir Rubinsztajn

Min-Yi Shih

Amol Rajaram Kolwalkar

Axel Busboom

Jeffrey Joseph Nasadoski

Paul Jeffrey Gillespie

Yaru Mendez Hernandez

Sunilkumar Onkarnath Soni

Radislav Alexandrovich Potyrailo

Ertugrul Berkcan

Peter Henry Tu

Kevin Matthew Durocher

Victor Petrovich Ostroverkhov

Richard Louis Zinser

Robert John Filkins

Hendrik Pieter Jacobus De Bock

Kanakasabapathi Subramanian

Frederick Wilson Wheeler

Christopher Anthony Kaminski

Bruno Hans Haider

Eddy Benjamin Boskamp

John Norton Park

John Frederick Graf

Pierino Gianni Bonanni

Graeme Colin McKinnon

Michael Joseph Dell'Anno

Harold Woodruff Tomlinson, Jr

Samhita Dasgupta

Kaustubh Ravindra Nagarkar

David Mulford Shaddock

Naveen Stephan Chandra

Selaka Bandara Bulumulla

Arthur Vorwerk Radun

George Theodore Dalakos

Kathleen Ann O'Brien

John Michael Kern

Raymond Jensen

Brock Matthew Lape

Aaron Jay Knobloch

Cheng-Po Chen

Robert Carl Murray

Bowden Kirkpatrick

Adam Fraser Halverson

Brendon Matthew Leeker

Stephen Duane Sanborn

Haiyan Sun

Richard Hardison

David William Vernooy

Nasr Eldine Alkadi

Sabarni Palit

Andrew Jacob Gorton

Jeffrey Roy Rudd

John Andrew Westerheide

Paul William Judge

Eddy Benjemin Boskamp

Bradley Alan Bauer

Marco Guerriero

Bruce J Jacobson

Trent Gillham

Ryan McCormack

Gandeephan Ganeshalingam

Victor Welch

Mauricio Palomino

Mosharraf Hossain

Ehsan Jalilian

Daniel Fishman

Kevin Sheridan

Gerald Curtin

Jason Case

Wajdi Mohammad Ahmad

Vincent Frank Rubino

Anurag Kasyap Vejjupalle Subramanyam

Ryan Mccormack

Raymond Verle Jensen

Paul Judge

A method for measuring shaft deflection in a turbomachine includes communicating one or more signals from a controller to a plurality of sensing devices positioned on a shaft of a turbomachine across an airgap defined between a rotating antenna positioned around the shaft and a stationary antenna aligned with the rotating antenna in a radial direction to excite the plurality of sensing devices; receiving a parameter of the shaft in a plurality of circumferentially spaced locations from the excited plurality of sensing devices; determining a magnitude of a deflection in the shaft as a function of the parameter of the shaft in the plurality of circumferentially spaced locations; and adjusting a startup sequence or a motoring sequence of the turbomachine based on the magnitude of the deflection.

System and method for reducing motoring time in a turbomachine based on shaft deflection

A satellite relay communication system includes a central terminal. The central terminal includes a passive optical router and a multiplexer. The satellite relay communication system also includes remote terminals, each remote terminal including an optical transceiver configured to send optical signals to the passive optical router, configured to receive optical signals from the passive optical router, and configured to multiplex optical signals received from the passive optical router.

Satellite relay communication systems

A photonic circuit integrated on a silicon-on-insulator waveguide, the silicon-on-insulator waveguide including a guiding layer, a cladding layer, and a substrate layer. The guiding layer having a first surface and a second surface, the second surface abutting one surface of the cladding layer, the cladding layer having another surface in abutment with a surface of the substrate layer, a photon pump in optical communication with the guiding layer, a nonlinear optical material in contact with the guiding layer first surface, a photon beam of the photon pump traversing the silicon-on-insulator waveguide, and the silicon-on-insulator waveguide having an output beam that includes a signal beam and an idler beam.

Integrated entangled photon source

A system may include a substrate, a computing device that performs one or more edge processing operations disposed on the substrate, and an integrated photonic circuit that performs distributed acoustic sensing operations and is also disposed on the substrate. The integrated photonic circuit may include a light source, a circulator, and a photodiode. The light may transmit a first light pulse. The circulator may transmit the first light pulse to a fiber-optic cable. The circulator may also receive a back-scattered light pulse based at least in part on the first light pulse. The photodiode may receive at least a portion of the back-scattered light pulse. The photodiode may generate one or more electrical signals based at least in part on the portion of the back-scattered light pulse.

Integrated fiber-optic perturbation sensor

Aspects of the present disclosure are directed toward designs and methods improving optical sensing, wavelength division multiplexed (WDM) telecommunication transceivers, WDM add/drops, and spectrometer techniques that may benefit from a stable wavelength reference. The disclosed designs and methods are useful in the manufacture of a stable wavelength reference that may compensate for temperature variations.

Systems and methods for providing a stable wavelength reference in an integrated photonic circuit

Leak detection user interfaces are provided. In general, a user interface for a pipeline management system can be configured to provide information regarding one or more pipelines to a user. The information can include data gathered using one or more sensors sensing various parameters. The information on the user interface can include results of analysis of the gathered data, such as notifications that the gathered data indicates an anomaly with a pipeline. The notifications of anomalies can be provided on the user interface in real time with the data analysis. Accordingly, the user can trigger one or more corrective actions such as notifying maintenance personnel local to a location of the identified anomaly, remotely controlling the pipeline with the anomaly to close valve(s) and/or other equipment to prevent fluid flow in the pipeline in the area of the detected anomaly, etc.

Leak detection user interfaces

According to some embodiments, a signal processing unit may receive distributed acoustic sensing data associated with a first set of a plurality of pipeline locations. The signal processing unit may also receive collected physical data representing a physical characteristic of a second set of a plurality of pipeline locations. The signal processing unit may then utilize a pipeline model having the distributed acoustic sensing data and collected physical data as inputs to automatically generate at least one alert indicating an increased probability of damage to the pipeline.

Systems and methods to provide pipeline damage alerts

A photonic sensor system includes: a photodetector; a signal processor coupled to the photodetector; and a sensor structure configured to provide fluid-response selectivity, spatially distribute light, and to receive light from a light source and convey light to the photodetector. The sensor structure includes a plurality of fluid sensitive interferometric nanostructure layers manufactured on a substrate; wherein the plurality of fluid sensitive interferometric nanostructure layers includes alternating high and low porosity layers.

Photonic sensor for in situ selective detection of components in a fluid

A sensor deployment system for positioning within a well casing is provided. The sensor deployment system includes a deployment shuttle comprising a first end, a second end, and an inner surface and an outer surface extending between the first end and the second end. The inner surface is configured to define a channel between the first end and the second end. A sleeve is coupled to the outer surface and configured to move relative to the well casing. A wire support is coupled to the inner surface and extending into the channel.

Sensor deployment system for a wellbore and methods of assembling the same

Optical-based apparatus and method for sensing parameters in connection with an asset, such as a pipeline, are provided. At least two sites in an optical fiber may include a respective fiber grating arranged to have a respective optical response in a wavelength spectrum having a distinguishing feature indicative of a value of a respective local parameter at a respective grating site. The two fiber gratings may be further arranged to form, in combination with a respective portion of the optical fiber which extends between the two sites, respective optical backscatter portions that when combined with one another are effective to sense an optical change in the fiber portion between the sites indicative of a value of a distributed parameter. This is a parameter modality different from a parameter modality of the respective local parameters at the respective grating sites.

Fiber optic sensing apparatus including fiber gratings and method for sensing parameters involving different parameter modalities

A pressure sensing cable in one embodiment includes a polarization maintaining (PM) optic fiber having a length; and a Fiber Bragg Grating (FBG) pair formed in the PM optic fiber. The FBG pair includes a first FBG formed at a location along the length of the optic fiber. The first FBG defines a first wavelength range at which the first FBG is reflective. The FBG pair also includes a second FBG spaced a distance from the first FBG to define a FBG cavity extending between the first FBG and the second FBG. The second FBG defines a second wavelength range at which the second FBG is reflective. The first wavelength range of the first FBG and the second wavelength range of the second FBG at least partially overlap.

Systems and methods for distributed pressure sensing

A system is provided for monitoring strain in a substrate using a strain sensor element within a fiber optic sensing cable. Accurate and rapid measurement of strain of remote substrates presents major technical challenges and is the focus of much of the description presented. However, systems, methods and devices provided by the present invention are not only capable of reliably measuring strain in real time, but are also capable of measuring other characteristics of a substrate such as its temperature, pressure and its acoustic characteristics. The system is configured such that a strain sensor element within a strain sensing zone detects substantially the true strain characteristics of the substrate. And while other sensing elements within the same fiber optic sensing cable may not be configured to detect substrate strain at all, these sensing elements may reliably measure the temperature and pressure at the surface of the substrate adjacent to the strain sensing zone.

System and method for monitoring strain

An optical-based sensing apparatus and method are provided. A sensing apparatus () may include a tube (). An optical fiber () may be encased in the tube. A buffering layer () may be interposed between the optical fiber and the tube. The buffering layer and/or the tube may be selectively configured to form along a length of the apparatus a plurality of optical sensing zones () spatially arranged to sense parameters involving different parameter modalities.

Fiber optic sensing apparatus and method for sensing parameters involving different parameter modalities

A system for monitoring tightness of stator windings in an electric machine is provided. The system includes a light source for providing an optical power. The system also includes an optical separation sensor situated in a stator core and including an optical interface element for absorbing some of the optical power. Further, the system includes a power meter for measuring at least one intensity of the optical power after absorption by the optical interface element and a control subsystem for assessing the tightness of the stator windings.

Remote monitoring of tightness of stator windings

A measurement system includes a broadband light source that outputs a broadband light, an optical splitter that divides the broadband light into a plurality of divided light beams and a plurality of optical sensors, each optical sensor configured to receive a single one of the divided light beams and measure an electrical parameter of a conductor.

Distributed, multiplexed fiber optic current transducer using optical power division

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Niskayuna, NY, United States of America

Glen Peter Koste