公开(公告)号：US11519894B2

公开(公告)日：2022-12-06

申请号：US17151377

申请日：2021-01-18

Applicant: Palo Alto Research Center Incorporated ,  Consolidated Edison Company of New York, Inc.

Inventor： Mark Teepe ,  Todd Karin ,  Peter Kiesel ,  Ajay Raghavan ,  Jane Shin ,  Bradley Kittrell ,  Serena Lee

IPC: G01N33/2045 ,  G01D5/26 ,  G01R31/62

Abstract: A corrosion monitoring system includes one or more objects coupled to respective portions of a transformer tank. The one or more objects are configured to corrode before the respective portions of the transformer tank. At least one optical sensor is coupled to each of the objects. The at least one optical sensor has an optical output that changes in response to strain of the object. An analyzer is coupled to the at least one optical sensor. The analyzer is configured to perform one or more of detecting and predicting corrosion of the transformer tank based on the output of the at least one optical sensor.

公开(公告)号：US11453584B2

公开(公告)日：2022-09-27

申请号：US16394041

申请日：2019-04-25

Applicant: PALO ALTO RESEARCH CENTER INCORPORATED

Inventor： Divyaraj Desai ,  Todd Karin ,  Jessica Louis Baker Rivest

IPC: B01J8/08 ,  C01B3/26 ,  B01J21/18 ,  B01J35/12 ,  B01J38/48 ,  C07C5/32 ,  B01J8/12

Abstract: A system for hydrocarbon decomposition comprising a reactor volume, a mechanism to distribute the liquid catalyst as a liquid mist, a distributor to distribute a hydrocarbon reactant, a heat source, a separator to separate the solid product from the liquid catalyst, a re-circulation path and mechanism to re-circulate the liquid catalyst, and an outlet for at least one gaseous product. A system to distribute a liquid to an enclosed volume as a mist has a plurality of orifices designed to break the liquid into a mist. A method to decompose a hydrocarbon reactant includes generating a mist of a liquid catalyst, heating the reactor volume, introducing a hydrocarbon reactant into the reactor volume to produce a solid product and a gaseous product, separating the solid product from the liquid catalyst, removing the solid and gaseous products from the reactor volume, and recirculating the liquid catalyst to the reactor volume.

公开(公告)号：US20210239675A1

公开(公告)日：2021-08-05

申请号：US17151377

申请日：2021-01-18

Applicant: Palo Alto Research Center Incorporated ,  Consolidated Edison Company of New York, Inc.

Inventor： Mark Teepe ,  Todd Karin ,  Peter Kiesel ,  Ajay Raghavan ,  Jane Shin ,  Bradley Kittrell ,  Serena Lee

IPC: G01N33/2045 ,  G01D5/26 ,  G01R31/62

Abstract: A corrosion monitoring system includes one or more objects coupled to respective portions of a transformer tank. The one or more objects are configured to corrode before the respective portions of the transformer tank. At least one optical sensor is coupled to each of the objects. The at least one optical sensor has an optical output that changes in response to strain of the object. An analyzer is coupled to the at least one optical sensor. The analyzer is configured to perform one or more of detecting and predicting corrosion of the transformer tank based on the output of the at least one optical sensor.

公开(公告)号：US20210123775A1

公开(公告)日：2021-04-29

申请号：US16665015

申请日：2019-10-28

Applicant: Palo Alto Research Center Incorporated

Inventor： Peter Kiesel ,  Ajay Raghavan ,  Todd Karin ,  Qiushu Chen

IPC: G01D5/353 ,  G01K11/32 ,  G01R31/62 ,  G01L1/24

Abstract: A sensor system includes a sensor network comprising at least one optical fiber having one or more optical sensors. At least one of the optical sensors is arranged to sense vibration of an electrical device and to produce a time variation in light output in response to the vibration. A detector generates an electrical time domain signal in response to the time variation in light output. An analyzer acquires a snapshot frequency component signal which comprises one or more time varying signals of frequency components of the time domain signal over a data acquisition time period. The analyzer detects a condition of the electrical device based on the snapshot frequency component signal.

公开(公告)号：US11981563B2

公开(公告)日：2024-05-14

申请号：US17951308

申请日：2022-09-23

Applicant: PALO ALTO RESEARCH CENTER INCORPORATED

Inventor： Divyaraj Desai ,  Todd Karin ,  Jessica Louis Baker Rivest

IPC: C01B32/05 ,  B01J8/12 ,  B01J21/18 ,  B01J35/27 ,  B01J38/48 ,  C01B3/26 ,  C07C5/32

CPC classification number: C01B3/26 ,  B01J8/125 ,  B01J21/18 ,  B01J35/27 ,  B01J38/48 ,  C01B32/05 ,  C07C5/321 ,  B01J2203/06 ,  C01B2203/1005 ,  C01B2203/1041 ,  C01B2203/1241

Abstract: A method to decompose a hydrocarbon reactant into a gaseous product and a solid product includes generating a mist of a liquid material within a reactor volume, heating the reactor volume, introducing a hydrocarbon reactant into the reactor volume to produce a solid product and a gaseous product, separating the solid product from the liquid material, removing the solid product and gaseous product from the reactor volume, and recirculating the liquid material be re-introduced to the reactor volume.

公开(公告)号：US11067610B2

公开(公告)日：2021-07-20

申请号：US16235754

申请日：2018-12-28

Applicant: Palo Alto Research Center Incorporated

Inventor： Todd Karin ,  Peter Kiesel ,  Ajay Raghavan

IPC: G01R19/25 ,  G01R15/16 ,  G01R15/22 ,  G01R19/00 ,  G01R19/252 ,  G01R31/12

Abstract: A partial discharge (PD) detection system includes a PD sensor configured to sense a PD event of an electrical system and to generate a sensor signal in response to the PD event. An envelope generator is coupled to receive the sensor signal from the PD sensor. The envelope generator extracts an envelope signal from the sensor signal. A digitizer is configured to convert the envelope signal to a digital representation of the PD event.

公开(公告)号：US20200209301A1

公开(公告)日：2020-07-02

申请号：US16235747

申请日：2018-12-28

Applicant: Palo Alto Research Center Incorporated

Inventor： Todd Karin ,  Peter Kiesel ,  Ajay Raghavan

IPC: G01R31/12 ,  G01R19/00 ,  G01R15/16 ,  G01R15/22

Abstract: A partial discharge (PD) transducer that includes a PD sensor configured to sense a PD event of an electrical system. At least one light emitting device (LED) is arranged in series with the PD sensor. The LED is configured to receive the electrical sensor signal from the PD sensor and to generate a light signal in response to the electrical sensor signal.

公开(公告)号：US11719559B2

公开(公告)日：2023-08-08

申请号：US16665015

申请日：2019-10-28

Applicant: Palo Alto Research Center Incorporated

Inventor： Peter Kiesel ,  Ajay Raghavan ,  Todd Karin ,  Qiushu Chen

IPC: G01D5/353 ,  G01K11/32 ,  G01R31/62 ,  G01L1/24

CPC classification number: G01D5/35345 ,  G01K11/32 ,  G01L1/242 ,  G01R31/62

Abstract: A sensor system includes a sensor network comprising at least one optical fiber having one or more optical sensors. At least one of the optical sensors is arranged to sense vibration of an electrical device and to produce a time variation in light output in response to the vibration. A detector generates an electrical time domain signal in response to the time variation in light output. An analyzer acquires a snapshot frequency component signal which comprises one or more time varying signals of frequency components of the time domain signal over a data acquisition time period. The analyzer detects a condition of the electrical device based on the snapshot frequency component signal.

公开(公告)号：US11287463B2

公开(公告)日：2022-03-29

申请号：US16235747

申请日：2018-12-28

Applicant: Palo Alto Research Center Incorporated

Inventor： Todd Karin ,  Peter Kiesel ,  Ajay Raghavan

IPC: G01R31/12 ,  G01R15/16 ,  G01R15/22 ,  G01R19/00

Abstract: A partial discharge (PD) transducer that includes a PD sensor configured to sense a PD event of an electrical system. At least one light emitting device (LED) is arranged in series with the PD sensor. The LED is configured to receive the electrical sensor signal from the PD sensor and to generate a light signal in response to the electrical sensor signal.

公开(公告)号：US20210123966A1

公开(公告)日：2021-04-29

申请号：US16662992

申请日：2019-10-24

Applicant: Palo Alto Research Center Incorporated ,  General Electric Company ,  Consolidated Edison Company of New York, Inc.

Inventor： Todd Karin ,  Peter Kiesel ,  Ajay Raghavan ,  Robert T. Stinson, IV ,  Malcolm G. Smith, JR. ,  Jane Shin ,  Serena Lee ,  Bradley Kittrell

IPC: G01R31/12 ,  G01R31/02

Abstract: An approach to detecting partial discharge events involves retrofitting an electrical system to include a capacitive sensor configured to capacitively sense partial discharge events of a component of the electrical system. The capacitive sensor has a first electrical conductor that forms a first terminal of the capacitive sensor, a second electrical conductor that forms a second terminal of the capacitive sensor, and a dielectric that separates the first electrical conductor and the second electrical conductor. The capacitive sensor generates an electrical sensor signal at an output of the capacitive sensor in response to the partial discharge event. The electrical sensor signal is converted to an optical signal and the optical signal is processed to detect an occurrence of the partial discharge event.