Patents by Inventor Shobhana Mani
Shobhana Mani has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20130078154Abstract: The present embodiments are directed toward a system for measuring a refractory layer of a gasifier. In one embodiment, the gasifier includes a first refractory layer disposed about a gasification chamber, a second refractory layer disposed about the first refractory layer, and a temperature sensor disposed between the first refractory layer and the second refractory layer. The temperature sensor may collect temperature data for use in determining a thickness of the first refractory layer.Type: ApplicationFiled: September 23, 2011Publication date: March 28, 2013Applicant: General Electric CompanyInventors: Kevin Michael Sullivan, Shobhana Mani, Aaron Avagliano
-
Patent number: 8269509Abstract: A system and method for measuring a thickness of a refractory wall of a gasifier using electromagnetic energy is disclosed. The system includes a waveguide with a bistatic or monostatic phased array antenna at one end. The waveguide is operably connected to a Network Analyzer that generates a pulse of electromagnetic energy with a desired bandwidth. The pulse is transmitted through a coaxial cable to the waveguide. The reflection of the pulse is received by the waveguide and input to a data acquisition system. An output device displays the resolvable discontinuities in impedance encountered by the pulse in its propagation path in the system.Type: GrantFiled: November 17, 2008Date of Patent: September 18, 2012Assignee: General Electric CompanyInventors: Emad Andarawis Andarawis, John Erik Hershey, Ibrahim Issoufou Kouada, Shobhana Mani, Anthony Mark Thompson
-
Patent number: 8147130Abstract: A heat flux measurement device includes at least two thermocouples disposed within a front portion of the device at different axial distances from a front wall of the device. A correlation between the measured heat fluxes from the device over a period of time is used to estimate a fouling thickness on a wall, for example, a water wall of a radiant syngas cooler (RSC).Type: GrantFiled: April 18, 2008Date of Patent: April 3, 2012Assignee: General Electric CompanyInventors: Mohamed Sakami, James Michael Storey, Shobhana Mani, Fulton Jose Lopez
-
Patent number: 7824100Abstract: A temperature measurement device includes a first thermocouple mounted on a tubular body that is shielded from the effects of radiation by a radiation shield, and a second, unshielded thermocouple. A difference in the measured temperatures from the first and second thermocouples is compared with calculated temperatures using an iterative process to determine a corrected temperature of the gas stream that estimates and compensates for incident radiation.Type: GrantFiled: August 8, 2007Date of Patent: November 2, 2010Assignee: General Electric CompanyInventors: Mohamed Sakami, Fulton Jose Lopez, Hongmei Zhang, Shobhana Mani, Robert Michael Zirin, James Michael Storey, Aaton John Avagliano, David Howard Syck
-
Publication number: 20100123467Abstract: A system and method for measuring a thickness of a refractory wall of a gasifier using electromagnetic energy is disclosed. The system includes a waveguide with a bistatic or monostatic phased array antenna at one end. The waveguide is operably connected to a Network Analyzer that generates a pulse of electromagnetic energy with a desired bandwidth. The pulse is transmitted through a coaxial cable to the waveguide. The reflection of the pulse is received by the waveguide and input to a data acquisition system.Type: ApplicationFiled: November 17, 2008Publication date: May 20, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Emad Andarawis Andarawis, John Erik Hershey, Ibrahim Issoufou Kouada, Shobhana Mani, Anthony Mark Thompson
-
Publication number: 20090262777Abstract: A heat flux measurement device includes at least two thermocouples disposed within a front portion of the device at different axial distances from a front wall of the device. A correlation between the measured heat fluxes from the device over a period of time is used to estimate a fouling thickness on a wall, for example, a water wall of a radiant syngas cooler (RSC).Type: ApplicationFiled: April 18, 2008Publication date: October 22, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Mohamed Sakami, James Michael Storey, Shobhana Mani, Fulton Jose Lopez
-
Publication number: 20090041084Abstract: A temperature measurement device includes a first thermocouple mounted on a tubular body that is shielded from the effects of radiation by a radiation shield, and a second, unshielded thermocouple. A difference in the measured temperatures from the first and second thermocouples is compared with calculated temperatures using an iterative process to determine a corrected temperature of the gas stream that estimates and compensates for incident radiation.Type: ApplicationFiled: August 8, 2007Publication date: February 12, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Mohamed Sakami, Fulton Jose Lopez, Hongmei Zhang, Shobhana Mani, Robert Michael Zirin, James Michael Storey, Aaron John Avagliano, David Howard Syck
-
Patent number: 7333913Abstract: A clearance measurement system is provided. The clearance measurement system includes a reference geometry disposed on a first object having an otherwise continuous surface geometry and a sensor disposed on a second object, wherein the sensor is configured to generate a first signal representative of a first sensed parameter from the first object and a second signal representative of a second sensed parameter from the reference geometry. The clearance measurement system also includes a processing unit configured to process the first and second signals to estimate a clearance between the first and second objects based upon a measurement difference between the first and second sensed parameters.Type: GrantFiled: June 27, 2005Date of Patent: February 19, 2008Assignee: General Electric CompanyInventors: Emad Andarawis Andarawis, Mahadevan Balasubramaniam, Todd Alan Anderson, Samhita Dasgupta, David Mulford Shaddock, Shobhana Mani, Jie Jiang
-
Patent number: 7215129Abstract: A multi tip clearance measurement system is provided. The clearance measurement system includes a sensor disposed on a first object, wherein the sensor comprises a plurality of probe tips configured to generate signals representative of a sensed parameter corresponding to a second object and a processing unit configured to evaluate the signals from subsets of the sensed parameters from the probe tips to detect an outlier probe tip and to adjust a gain, or an offset of the respective outlier probe tip for estimating the clearance between the first and second objects based upon the signals.Type: GrantFiled: March 30, 2006Date of Patent: May 8, 2007Assignee: General Electric CompanyInventors: Emad Andarawis Andarawis, Samhita Dasgupta, Shobhana Mani, Weiguo Chen
-
Publication number: 20070005294Abstract: A clearance measurement system is provided. The clearance measurement system includes a reference geometry disposed on a first object having an otherwise continuous surface geometry and a sensor disposed on a second object, wherein the sensor is configured to generate a first signal representative of a first sensed parameter from the first object and a second signal representative of a second sensed parameter from the reference geometry. The clearance measurement system also includes a processing unit configured to process the first and second signals to estimate a clearance between the first and second objects based upon a measurement difference between the first and second sensed parameters.Type: ApplicationFiled: June 27, 2005Publication date: January 4, 2007Inventors: Emad Andarawis, Mahadevan Balasubramaniam, Todd Anderson, Samhita Dasgupta, David Shaddock, Shobhana Mani, Jie Jiang
-
Patent number: 7095354Abstract: A multi-channel analog to digital conversion circuit and methods thereon are provided. The multi-channel analog to digital conversion cirucit comprises a plurality of linearized channels wherein each channel comprises a multi-stage pipelined charge-to-digital converter and an integrating capacitor within each stage of the multi-stage converter wherein analog residue is processed by subsequent analog to digital converter stages. Each stage of respective linearized channels is configured for calculating gain and offset for each stage in the channel and such gain and offset is used in subsequent integration periods.Type: GrantFiled: August 12, 2005Date of Patent: August 22, 2006Assignee: General Electric CompanyInventors: Daniel David Harrison, Naresh Kesavan Rao, Shobhana Mani, Naveen Stephan Chandra, Oliver Richard Astley, Donald Thomas McGrath
-
Patent number: 7043340Abstract: A protection system for a power distribution system is provided. The protection system includes a central computer, a plurality of data modules, and a data network. The data modules are each in communication with a different circuit breaker of the power distribution system. The data network communicates between the central computer and the plurality of data modules. The central computer sends an instruction to the plurality of data modules over the data network to aid in synchronization of sampling of a power condition at the plurality of data modules.Type: GrantFiled: February 25, 2003Date of Patent: May 9, 2006Assignee: General Electric CompanyInventors: Thomas F. Papallo, Indra Purkayastha, Emad Andarawis Andarawis, Ertugrul Berkcan, Scott Charles Evans, Rahul Gore, Mingxiao Jiang, Shobhana Mani, Daniel Lawrence Morrill, Eugene Joseph Orlowski, Jr., Marc Robert Pearlman, William James Premerlani, Ramakrishna Rao, Samantha Rao, Austars Raymond Schnore, Jr., Charles Scott Sealing, Daniel White Sexton, Somashekhar Basavaraj, Terry Michael Topka
-
Publication number: 20060038712Abstract: A multi-channel analog to digital conversion circuit and methods thereon are provided. The multi-channel analog to digital conversion cirucit comprises a plurality of linearized channels wherein each channel comprises a multi-stage pipelined charge-to-digital converter and an integrating capacitor within each stage of the multi-stage converter wherein analog residue is processed by subsequent analog to digital converter stages. Each stage of respective linearized channels is configured for calculating gain and offset for each stage in the channel and such gain and offset is used in subsequent integration periods.Type: ApplicationFiled: August 12, 2005Publication date: February 23, 2006Inventors: Daniel Harrison, Naresh Rao, Shobhana Mani, Naveen Chandra, Oliver Astley, Donald McGrath
-
Publication number: 20040019410Abstract: A protection system for a power distribution system is provided. The protection system includes a central computer, a plurality of data modules, and a data network. The data modules are each in communication with a different circuit breaker of the power distribution system. The data network communicates between the central computer and the plurality of data modules. The central computer sends an instruction to the plurality of data modules over the data network to aid in synchronization of sampling of a power condition at the plurality of data modules.Type: ApplicationFiled: February 25, 2003Publication date: January 29, 2004Applicant: General Electric CompanyInventors: Thomas F. Papallo, Indra Purkayastha, Emad Andarawis Andarawis, Ertugrul Berkcan, Scott Charles Evans, Rahul Gore, Mingxiao Jiang, Shobhana Mani, Daniel Lawrence Morrill, Eugene Joseph Orlowski, Marc Robert Pearlman, William James Premerlani, Ramakrishna Rao, Samantha Rao, Austars Raymond Schnore, Charles Scott Sealing, Daniel White Sexton, Somashekhar Basavaraj, Terry Michael Topka