Patents by Inventor Sandip Maity

Sandip Maity 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).

  • Patent number: 9568416
    Abstract: A multimode detection system for detecting one or more samples is provided. The detection system comprises an electromagnetic radiation source, a reference arm, and a sample arm comprising a sensing substrate having a plurality of sample fields, wherein the sample fields are configured to receive the one or more samples. The system further comprises a phase difference generator configured to introduce pathlength differences in the reference arm, sample arm, or both, a spatial light modulator operatively coupled to the reference arm, sample arm, or both, wherein the spatial light modulator is configured to modulate incident radiation, resultant radiation, or both in the reference arm, sample arm, or both, and an imaging spectrometer configured to discriminate between two or more spatially separated sample en two or more spatially separated sample fields.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: February 14, 2017
    Assignee: General Electric Company
    Inventors: Sameer Dinkar Vartak, Sandip Maity, Rajesh Veera Venkata Lakshmi Langoju, Abhijit Vishwas Patil
  • Publication number: 20170010250
    Abstract: A system, comprising at least one source for irradiating electromagnetic radiation into a sample fluid and a reference fluid resulting in a change in a temperature of the sample fluid and a change in a temperature of the reference fluid, and a processing subsystem that monitors and determines a concentration of a gas of interest dissolved in the sample fluid based upon a difference between the change in the temperature of the sample fluid and the change in the temperature of the reference fluid, wherein the reference fluid does not contain the gas of interest, and the electromagnetic radiation has a wavelength range corresponding to a spectral absorption range of the gas of interest.
    Type: Application
    Filed: September 23, 2016
    Publication date: January 12, 2017
    Inventors: Sandip Maity, Nagapriya Kavoori Sethurnadhavan, Samhitha Palanganda Poonacha, Prashanth Raghavendra Prasad
  • Publication number: 20170003218
    Abstract: A method includes receiving a gas mixture at a first pressure including at least a primary gas and a secondary gas and changing a pressure of the received gas mixture from the first pressure to a second pressure. Further, the method includes determining a spectra of the gas mixture at the second pressure, wherein at least the first spectral line of the primary gas is spectrally distinguished from at least the second spectral line of the secondary gas, identifying a peak wavelength associated with the spectrally distinguished first spectral line of the primary gas based on at least two wavelengths of the secondary gas corresponding to at least two peak amplitudes in the spectra of the gas mixture, and determining a concentration of the primary gas based on the identified peak wavelength associated with the spectrally distinguished first spectral line of the primary gas.
    Type: Application
    Filed: May 15, 2014
    Publication date: January 5, 2017
    Applicant: General Electric Company
    Inventors: Rachit Sharma, Chayan Mitra, Sandip Maity, Vinayak Tilak, Xiaoyong Liu, Anthony Kowal, Chong Tao
  • Patent number: 9500580
    Abstract: A gas detector and method are presented. The gas detector includes a launcher unit for coupling and merging light beams in mid-infrared and infrared wavelength ranges into a single light beam and directing the merged single light beam towards a gas flow path; a receiver unit for generating at least one photo detector current signal based on the light beam transmitted through the gas flow path; and a control unit for processing at least one photo detector current signal to measure concentration of the at least two gases present in the gas flow path.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: November 22, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Chayan Mitra, Narendra Digamber Joshi, Vinayak Tilak, Gordon Raymond Smith, Eric YuHang Fung, Sandip Maity, Rachit Sharma, Steven Keith Handelsman
  • Publication number: 20160282260
    Abstract: A system is presented. The system includes an absorption cell filled-with a gas-mixture, a mirror-cum-window comprising a first portion that acts as a first mirror and a second portion that acts as a first window, a second mirror, a plurality of radiation sources to generate a plurality of light beams directed into the absorption cell through the first window followed by reflection of the plurality of light beams between the first mirror and the second mirror to irradiate the gas-mixture resulting in generation of a plurality of transmitted light beams passing out of the absorption cell through the second window, a detector that detects at least one characteristic of the plurality of transmitted light beams resulting in generation of one or more response signals, and a processing subsystem that analyzes the gas-mixture at least based on the one or more response signals.
    Type: Application
    Filed: March 25, 2015
    Publication date: September 29, 2016
    Inventors: Mark Marshall Meyers, David Peter Robinson, Sandip Maity, Nagapriya Kavoori Sethumadhavan
  • Patent number: 9453806
    Abstract: A system, comprising at least one source for irradiating electromagnetic radiation into a sample fluid and a reference fluid resulting in a change in a temperature of the sample fluid and a change in a temperature of the reference fluid, and a processing subsystem that monitors and determines a concentration of a gas of interest dissolved in the sample fluid based upon a difference between the change in the temperature of the sample fluid and the change in the temperature of the reference fluid, wherein the reference fluid does not contain the gas of interest, and the electromagnetic radiation has a wavelength range corresponding to a spectral absorption range of the gas of interest.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: September 27, 2016
    Assignee: General Electric Company
    Inventors: Sandip Maity, Nagapriya Kavoori Sethumadhavan, Samhitha Palanganda Poonacha, Prashanth Raghavendra Prasad
  • Publication number: 20160187251
    Abstract: A method for determining a concentration of at least one individual gas present in a gas-mixture includes irradiating a first component by incident modulated-light-beams characterized by a determined absorption wavelength range, modulation frequencies and a modulation amplitudes to generate first transmitted-light-beams, irradiating a second component, comprising a determined concentration of the at least one individual gas, by the first incident modulated-light-beams to generate second transmitted-light-beams, generating noise signals representative of a characteristic of the first transmitted-light-beams, generating noise-free signals representative of a characteristic of the second transmitted-light-beams, selecting an optimal modulation frequency and an optimal modulation amplitude from the modulation frequencies and the modulation amplitudes based on the noise signals and the noise-free signals, and determining a concentration of the at least one individual gas in the gas-mixture based on the optimal mod
    Type: Application
    Filed: December 26, 2014
    Publication date: June 30, 2016
    Inventors: Nagapriya Kavoori Sethumadhavan, Sandip Maity, Samhitha Palanganda Poonacha, Moitrayee Mukherjee, Purbasha Halder, Harish Sasikumar, Prasenjit Pandey
  • Patent number: 9103704
    Abstract: A holding is presented. The holding device includes a male connector comprising a first male extension and a second male extension that extend out of opposite surfaces of a male central disk, an electromagnetic guiding device continuously passing through a central hole that continuously passes through the first male extension, the male central disk and the second male extension, a reflector that is in a direct physical contact with a first end of the electromagnetic guiding device that ends at a top surface of the first male extension, and a holder that covers the first male extension to hold the reflector, and maintain the physical contact between the first end of the electromagnetic guiding device and the reflector.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: August 11, 2015
    Assignee: General Electric Company
    Inventors: Sandip Maity, Saroj Kumar Mahalik, Vinayak Tilak, Mason Harvey Guy, Neil Geoffrey Harris, Stuart John Eaton
  • Patent number: 9091206
    Abstract: The present application provides an inlet air fogging system for a gas turbine engine. The inlet air fogging system may include a fogging nozzle array and a fogging control system in communication with the fogging nozzle array. The fogging control system may include a droplet size measurement system and a humidity level measurement system.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: July 28, 2015
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Rahul J. Chillar, Chayan Mitra, Julio Enrique Mestroni, Sandip Maity, Rachit Sharma
  • Publication number: 20150140896
    Abstract: A system and method enabling users to connect toys with other users and their toys over a network, said system comprising: at least one toy connected to a social network; said social network having profiles of said toys and said users respectively; a web-server having a web-services module and a database connected to said social network, said toys and said users; an update server connected to said social network, said toys and said users; and a messaging server connected to said social network, said toys and said users.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Inventors: Sandip Maiti, Amit Deshpande
  • Publication number: 20150059435
    Abstract: A system and a method for detecting of components in a sample fluid includes a first chamber having a sample fluid and a second chamber coupled to the first chamber, wherein the second chamber has a reference fluid. The system includes a modulated light source for emitting a modulated light beam to the sample fluid and the reference fluid, to generate a first acoustic signal in the first chamber and a second acoustic signal in the second chamber. The system further includes a pressure sensor disposed between the first chamber and the second chamber, for detecting a difference between the first acoustic signal and the second acoustic signal. The system includes a processor based module communicatively coupled to the pressure sensor and configured to receive a signal representative of the difference and determine at least one of a component and the concentration of the component in the sample fluid.
    Type: Application
    Filed: August 25, 2014
    Publication date: March 5, 2015
    Inventors: Niloy Choudhury, Nagapriya Kavoori Sethumadhavan, Sandip Maity
  • Publication number: 20150029509
    Abstract: A device is presented. The device includes an electromagnetic guiding device to provide electromagnetic radiation, a reflector that reflects a portion of the electromagnetic radiation to generate a reflected portion of the electromagnetic radiation, wherein the reflector is fully immersed in a multiphase fluid, and a processing subsystem that analyzes the multiphase fluid based upon at least a portion of the reflected portion of the electromagnetic radiation, wherein a principal optical axis of the electromagnetic guiding device substantially aligns with a principal optical axis of the reflector.
    Type: Application
    Filed: July 25, 2013
    Publication date: January 29, 2015
    Applicant: General Electric Company
    Inventors: Sandip Maity, Saroj Kumar Mahalik, Vinayak Tilak, Mason Harvey Guy, Neil Geoffrey Harris, Stuart John Eaton
  • Publication number: 20150027243
    Abstract: A holding is presented. The holding device includes a male connector comprising a first male extension and a second male extension that extend out of opposite surfaces of a male central disk, an electromagnetic guiding device continuously passing through a central hole that continuously passes through the first male extension, the male central disk and the second male extension, a reflector that is in a direct physical contact with a first end of the electromagnetic guiding device that ends at a top surface of the first male extension, and a holder that covers the first male extension to hold the reflector, and maintain the physical contact between the first end of the electromagnetic guiding device and the reflector.
    Type: Application
    Filed: July 25, 2013
    Publication date: January 29, 2015
    Applicant: General Electric Company
    Inventors: Sandip Maity, Saroj Kumar Mahalik, Vinayak Tilak, Mason Harvey Guy, Neil Geoffrey Harris, Stuart John Eaton
  • Publication number: 20140249055
    Abstract: A system for detecting an array of samples having detectable samples and at least one reference sample is provided. The system comprises an electromagnetic radiation source, a sensing surface comprising a plurality of sample fields, wherein the plurality of sample fields comprise at least one reference field, a phase difference generator configured to introduce differences in pathlengths of one or more samples in the array of samples, and an imaging spectrometer configured to image one or more samples in the array of samples.
    Type: Application
    Filed: September 28, 2012
    Publication date: September 4, 2014
    Inventors: Masako Yamada, Sandip Maity, Sameer Dikar Vartak, Rajesh Langoju, Abhijit Patil
  • Patent number: 8795205
    Abstract: An optical displacement sensor is provided according to one embodiment. The optical displacement sensor comprises a housing; a displacement member coupled to the housing, configured to contact an object under test and move based on displacement of the object under test; a light emitter coupled to the housing; an optical transducer coupled to the housing; and a reflecting surface coupled to the displacement member to reflect at least a part of the light emitted from the light emitter to the optical transducer, such that movement of the displacement member modifies intensity distribution of the light reflected to the optical transducer.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: August 5, 2014
    Assignee: General Electric Company
    Inventors: Sandip Maity, Kunal Ravindra Goray, Nasir Ahmed Desai, Kiran Kumar Bogineni, Sampa Ghosh, Rachit Sharma
  • Patent number: 8792102
    Abstract: A detection system for a two-dimensional (2D) array is provided. The detection system comprises an electromagnetic radiation source, a phase difference generator, a detection surface having a plurality of sample fields that can receive samples, and an imaging spectrometer configured to discriminate between two or more spatially separated points.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: July 29, 2014
    Assignee: General Electric Company
    Inventors: Abhijit Vishwas Patil, Sandip Maity, Veera Venkata Lakshmi Rajesh Langoju, Anusha Rammohan, Sameer Dinkar Vartak, Umakant Damodar Rapol
  • Publication number: 20140165704
    Abstract: A system, comprising at least one source for irradiating electromagnetic radiation into a sample fluid and a reference fluid resulting in a change in a temperature of the sample fluid and a change in a temperature of the reference fluid, and a processing subsystem that monitors and determines a concentration of a gas of interest dissolved in the sample fluid based upon a difference between the change in the temperature of the sample fluid and the change in the temperature of the reference fluid, wherein the reference fluid does not contain the gas of interest, and the electromagnetic radiation has a wavelength range corresponding to a spectral absorption range of the gas of interest.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 19, 2014
    Applicant: General Electric Company
    Inventors: Sandip Maity, Nagapriya Kavoori Sethumadhavan, Samhitha Palanganda Poonacha, Prashanth Raghavendra Prasad
  • Patent number: 8711340
    Abstract: An auto-aligning system is presented. One embodiment of the auto-aligning system includes a launcher unit configured to direct a first laser beam and a second laser beam through a chamber, wherein the first laser beam is co-linear with the second laser beam. The auto-aligning spectroscopy system further includes a receiver unit configured to receive the first laser beam and the second laser beam passing through the chamber. The receiver unit includes a first detector configured to determine an intensity of the first laser beam. The receiver unit also includes a second detector configured to determine a deviation of the second laser beam from a determined position. Further, the auto-aligning spectroscopy system includes a motorized stage configured to align the launcher unit to a base-line position based on the determined deviation of the second laser beam.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: April 29, 2014
    Assignee: General Electric Company
    Inventors: Sandip Maity, Chayan Mitra, Rachit Sharma
  • Publication number: 20140036954
    Abstract: A method for dissolved gas analysis is presented. The method includes the steps of irradiating a fluid with electromagnetic radiation; and determining a concentration of a gas as a function of a temperature change of the fluid in response to the irradiation. A device for such an analysis of dissolved gases in a fluid, and a system having such device are also described.
    Type: Application
    Filed: July 25, 2013
    Publication date: February 6, 2014
    Applicant: General Electric Company
    Inventors: Sandip Maity, Nagapriya Kavoori Sethumadhavan, Shashank Sinha
  • Publication number: 20130165329
    Abstract: A multimode detection system for detecting one or more samples is provided. The detection system comprises an electromagnetic radiation source, a reference arm, and a sample arm comprising a sensing substrate having a plurality of sample fields, wherein the sample fields are configured to receive the one or more samples. The system further comprises a phase difference generator configured to introduce pathlength differences in the reference arm, sample arm, or both, a spatial light modulator operatively coupled to the reference arm, sample arm, or both, wherein the spatial light modulator is configured to modulate incident radiation, resultant radiation, or both in the reference arm, sample arm, or both, and an imaging spectrometer configured to discriminate between two or more spatially separated sample en two or more spatially separated sample fields.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 27, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Sameer Dinkar Vartak, Sandip Maity, Rajesh Veera Venkata Lakshmi Langoju, Abhijit Vishwas Patil