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公开(公告)号:US20230056905A1
公开(公告)日:2023-02-23
申请号:US17408686
申请日:2021-08-23
Applicant: Palo Alto Research Center Incorporated
Inventor: Christopher Chua , Joerg Martini , Zhihong Yang , Noble M. Johnson , Patrick Y. Maeda , Peter Kiesel
IPC: H01S5/42 , H01S5/183 , H01S5/02345 , H01S5/026
Abstract: A semiconductor surface-emitting laser array can be provided with a group of independently addressable light-emitting pixels arranged in at least two rows and in a linear array on a common substrate chip and including a common cathode and a dedicated channel associated with an address trace line for each pixel. An aggregate linear pitch can be achieved between pixels of the at least two rows along the linear array in a cross process direction that is less than the size of a pixel. The semiconductor laser array can include more than one common substrate chip tiled and stitched together in a staggered arrangement to provide an at least 11-inch wide, 1200pdi imager with timing delays associated with each of the more than one common substrate chip in the staggered arrangement.
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公开(公告)号:US11543611B2
公开(公告)日:2023-01-03
申请号:US17235311
申请日:2021-04-20
Applicant: Palo Alto Research Center Incorporated
Inventor: Jacob N. Chamoun , Qiushu Chen , Peter Kiesel , Kyle Arakaki
IPC: G02B6/44 , G01L5/04 , G01N21/896
Abstract: An apparatus includes a cassette configured to hold optical fiber comprising one or more optical sensors. The cassette comprises a spool configured to one or more of extract and retract the optical fiber from the cassette. A fiber monitor is coupled to the cassette. The fiber monitor is configured to monitor at least one parameter of the optical fiber as the optical fiber is extracted from the cassette.
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公开(公告)号:US11543303B2
公开(公告)日:2023-01-03
申请号:US16801479
申请日:2020-02-26
Applicant: Palo Alto Research Center Incorporated
Inventor: Peter Kiesel , Joerg Martini , Michael I. Recht
IPC: A61B5/00 , G01K11/165 , G01K17/00 , G01K11/12
Abstract: A nanocalorimeter device includes a substrate having test cells, each test cell comprising a sample location. Each sample location includes a reaction surface suitable for an enthalpic reaction of constituents of liquid droplets, droplet movement and configured to merge the droplets, and a layer of thermochromic material thermally coupled to the reaction surface. The thermochromic material is configured to exhibit a spectral shift in light emanating from the thermochromic material in response to a change in temperature of the merged droplets.
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公开(公告)号:US11519894B2
公开(公告)日:2022-12-06
申请号:US17151377
申请日:2021-01-18
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.
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公开(公告)号:US20220332103A1
公开(公告)日:2022-10-20
申请号:US17235123
申请日:2021-04-20
Applicant: Palo Alto Research Center Incorporated
Inventor: Jacob N. Chamoun , Qiushu Chen , Peter Kiesel
Abstract: An apparatus includes one or more stamps configured to install an optical fiber on a surface of a structure. Each stamp includes a backing. A first adhesive is disposed on one or more first regions of the backing and is configured to provide a temporary bond between the optical fiber and the surface. A second adhesive is disposed on at least a second region of the backing and is configured to provide a substantially permanent bond between the optical fiber and the surface. A liner is removably adhered to the first adhesive.
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公开(公告)号:US20210293658A1
公开(公告)日:2021-09-23
申请号:US16821356
申请日:2020-03-17
Applicant: Palo Alto Research Center Incorporated
Inventor: Spenser Anderson , Hong Yu , Peter Kiesel , Ajay Raghavan
Abstract: A set of load responses of an asset for a sample of traffic loading events caused by objects of unknown weight is measured. At least one statistical parameter is determined from the set of load responses. A corresponding statistical parameter of known object weights loading the asset is determined. An object weight is assigned to a load response of the set of load responses based on correlation of the extracted statistical parameter to the corresponding statistical parameter.
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公开(公告)号:US10777855B2
公开(公告)日:2020-09-15
申请号:US16559029
申请日:2019-09-03
Applicant: Palo Alto Research Center Incorporated
Inventor: Ajay Raghavan , Peter Kiesel , Lars Wilko Sommer , Bhaskar Saha , Saroj Sahu , Alexander Lochbaum , Tobias Staudt , Chang-Jun Bae , Mohamed Alamgir , Hoe Jin Hah , Bokkyu Choi , Gyu-Ok Hwang , Geun-Chang Chung
IPC: H01M10/48 , H01M2/08 , H01M10/04 , G01K11/32 , G01L1/24 , H01M2/10 , H01M10/42 , H01M10/052 , H01M2/06
Abstract: A battery includes a folded bicell battery stack with an embedded fiber optic cable and sensor. A cell casing encloses the bicell stack with at least one fiber optic cable is embedded within the battery. The fiber optic cable includes an internal portion disposed within the cell casing and having at least one optical sensor disposed thereon. An external portion of the fiber optic cable protrudes from the casing. A sealing gasket is disposed at least partially around the fiber optic cable and between the cell sealing edges at a point of entry of the fiber optic cable into the battery.
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公开(公告)号:US10330734B2
公开(公告)日:2019-06-25
申请号:US15652973
申请日:2017-07-18
Applicant: Palo Alto Research Center Incorporated
Inventor: Bhaskar Saha , Anurag Ganguli , Ajay Raghavan , Peter Kiesel , Kyle Arakaki , Julian Schwartz
IPC: G01R31/392 , G01R31/3828 , H01M10/0525 , H01M10/42 , H01M10/44 , H01G11/08 , H01G11/06 , G01R15/24 , G01R31/367 , G01R31/374 , H01G11/14
Abstract: A system detects and/or predicts metal ion plating events of a metal ion energy storage device. The system includes an optical sensor disposed internally within or externally on a metal ion energy storage device wherein the optical sensor has an optical output that changes in response to strain within a metal ion energy storage device. A current sensor senses current through the metal ion energy storage device. Plating detection circuitry measures a wavelength shift in the optical output of the optical sensor and estimates a state of charge (SOC) of the metal ion energy storage device based on the current. An expected wavelength shift is determined from the estimated SOC. A plating event can be detected and/or predicted based on the difference between the expected wavelength shift and the measured wavelength shift.
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公开(公告)号:US10317256B2
公开(公告)日:2019-06-11
申请号:US15488021
申请日:2017-04-14
Applicant: Palo Alto Research Center Incorporated
Inventor: Ajay Raghavan , Kyle Arakaki , Andreas Schuh , Alex Hegyi , Peter Kiesel , Anurag Ganguli
Abstract: A monitoring system includes optical sensors disposed on one or more fiber optic waveguides. Each optical sensor is spaced apart from other optical sensors and is disposed at a location along a route defined by a transportation structure that supports a moveable conveyance. The plurality of optical sensors are mechanically coupled to one or both of the transportation structure and the moveable conveyance. Each optical sensor provides an optical output signal responsive to vibrational emissions of one or both of the transportation structure and the conveyance. The monitoring system includes a detector unit configured to convert optical output signals from the optical sensors to electrical signals. A data acquisition controller synchronizes recordation of the electrical signals with movement of the conveyance.
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公开(公告)号:US10260858B2
公开(公告)日:2019-04-16
申请号:US15960079
申请日:2018-04-23
Applicant: Palo Alto Research Center Incorporated
Inventor: Joerg Martini , Marshall W. Bern , Noble M. Johnson , Peter Kiesel , Doron Kletter , Bowen Cheng , Michael I. Recht
Abstract: Spatially modulated light emanating from an object moving along a flow path is used to determine various object characteristics including object length along the flow direction. Light emanating from at least one object moving along in a flow path along a flow direction of a spatial filter is sensed. The intensity of the sensed light is time modulated according to features of the spatial filter. A time varying electrical signal is generated which includes a plurality of pulses in response to the sensed light. Pulse widths of at least some of the pulses are measured at a fraction of a local extremum of the pulses. The length of the object along the flow direction is determined based on the measured pulse widths.
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