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公开(公告)号：US11525769B2
公开(公告)日：2022-12-13
申请号：US17108314
申请日：2020-12-01
Applicant: Palo Alto Research Center Incorporated
Inventor： Qiushu Chen , Peter Kiesel , Jacob N. Chamoun , Norman Nan Shi , Noble M. Johnson
Abstract: An analyzing system includes a fluidic stream that guides an analyte in a detection area where the analyte emits or transmits light. One or more polarizing elements polarize the light into respective two or more different polarization components. One or more optical detectors receive the respective two or more polarization components and generate respective at least two signals in response. A processor is coupled to the optical detectors and configured to determine the polarization status of the light from the object based on the signals.
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公开(公告)号：US20220334333A1
公开(公告)日：2022-10-20
申请号：US17235138
申请日：2021-04-20
Applicant: Palo Alto Research Center Incorporated
Inventor： Jacob N. Chamoun , Qiushu Chen , Peter Kiesel , Mark R. Teepe , Kyle Arakaki
Abstract: A cassette for optical fiber includes one or more optical sensors. The cassette has a spool for handling optical fiber. An adjustable shaft is disposed such that the spool is configured to rotate about the adjustable shaft. The adjustable shaft is configured to handle spools having different diameters. A spool controller is coupled to the adjustable shaft and configured to rotate the adjustable shaft to perform one or more of extract and retract the optical fiber. One or more bushings are disposed proximate the spool and are configured to prevent the optical fiber from jumping off the spool.
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公开(公告)号：US11460658B1
公开(公告)日：2022-10-04
申请号：US17235138
申请日：2021-04-20
Applicant: Palo Alto Research Center Incorporated
Inventor： Jacob N. Chamoun , Qiushu Chen , Peter Kiesel , Mark R. Teepe , Kyle Arakaki
Abstract: A cassette for optical fiber includes one or more optical sensors. The cassette has a spool for handling optical fiber. An adjustable shaft is disposed such that the spool is configured to rotate about the adjustable shaft. The adjustable shaft is configured to handle spools having different diameters. A spool controller is coupled to the adjustable shaft and configured to rotate the adjustable shaft to perform one or more of extract and retract the optical fiber. One or more bushings are disposed proximate the spool and are configured to prevent the optical fiber from jumping off the spool.
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公开(公告)号：US20220259545A1
公开(公告)日：2022-08-18
申请号：US17733076
申请日：2022-04-29
Applicant: Palo Alto Research Center Incorporated
Inventor： Michael I. Recht , Joerg Martini , Peter Kiesel
Abstract: A test vessel includes one or more test locations configured to contain a medium suitable for culturing a live substance. A thermochromic material is thermally coupled to the one or more test locations. The thermochromic material is configured to exhibit a spectral shift in light emanating from the thermochromic material in response to an increase or decrease in energy conversion by the live substance that causes a change in temperature of the thermochromic material.
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公开(公告)号：US20220107367A1
公开(公告)日：2022-04-07
申请号：US17552790
申请日：2021-12-16
Applicant: Palo Alto Research Center Incorporated
Inventor： Ajay Raghavan , Peter Kiesel
Abstract: A monitoring system for a power grid includes one or more power transformer monitors. Each power transformer monitor includes a plurality of optical sensors disposed on one or more optical fibers that sense parameters of the power transformer. Each optical sensor is configured to sense a power transformer parameter that is different from a power transformer parameter sensed by at least one other sensor of the plurality of optical sensors. An optical coupler spatially disperses optical signals from the optical sensors according to wavelength. A detector unit converts optical signals of the optical sensors to electrical signals representative of the sensed power transformer parameters.
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Patent Agency Ranking
公开(公告)号：US20220107366A1
公开(公告)日：2022-04-07
申请号：US17513255
申请日：2021-10-28
Applicant: Palo Alto Research Center Incorporated
Inventor： Saman Mostafavi , Hong Yu , Ajay Raghavan , Peter Kiesel
IPC: G01R31/62 , G01J3/18 , G01L1/24 , H01F27/08 , H04B3/46 , G01N17/00 , H01F27/02 , G01R19/25 , G01R29/20 , G01R35/02 , G01R31/72 , G01R31/52 , G01R1/28
Abstract: A monitoring system includes an array of optical sensors disposed within a transformer tank. Each optical sensor is configured to have an optical output that changes in response to a temperature within the transformer tank. An analyzer is coupled to the array of optical sensors. The analyzer is configured to determine a sensed temperature distribution based on the sensed temperature. The sensed temperature distribution is compared to an expected distribution. Exterior contamination of the transformer tank is detected based on the comparison.
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公开(公告)号：US11293799B2
公开(公告)日：2022-04-05
申请号：US16730333
申请日：2019-12-30
Applicant: Palo Alto Research Center Incorporated
Inventor： Peter Kiesel , Philipp Schmaelzle , Konrad Bellmann , Markus Beck
Abstract: A sensing device includes an aperture structure having an aperture and imaging optics configured to direct polychromatic light toward the aperture. The imaging optics separates the light according to spectral range longitudinally along a first axis The aperture substantially transmits a spectral range of the light and substantially blocks other spectral ranges of the light. An optical detector is arranged to receive the spectral range of the light that is transmitted through the aperture. The optical detector generate an electrical output that corresponds to a centroid of the spectral range of the light.
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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
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.
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公开(公告)号：US11163105B1
公开(公告)日：2021-11-02
申请号：US17135356
申请日：2020-12-28
Applicant: Palo Alto Research Center Incorporated
Inventor： Kyle Arakaki , Peter Kiesel , Ajay Raghavan
Abstract: A sensor system includes an optical fiber. A set of wavelength shift sensors are inscribed on the optical fiber. The set includes at least one first wavelength shift sensor configured to reflect a first wavelength band of input light as a first optical output signal. The first wavelength shift sensor has a first value of an optical characteristic that modifies intensity of the first optical output signal. At least one second wavelength shift sensor is configured to reflect a second wavelength band of input light as a second optical output signal. The second wavelength shift sensor has a second value of the optical characteristic that modifies intensity of the second optical output signal, wherein the second value is different from the first value.
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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
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.
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