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公开(公告)号：US20220011464A1
公开(公告)日：2022-01-13
申请号：US16925775
申请日：2020-07-10
发明人： Ammar Alali , Husain Nassir , Ezzedeen Alfataeirge
摘要： A system for monitoring downhole cement quality in a cased well includes an active acoustic source that generates acoustic waves, a distributed acoustic sensor, and a controller. The distributed acoustic sensor includes an optical fiber disposed on an outer surface of a casing of the cased well; a pulsed laser coupled to the optical fiber and that transmits pulses of laser light along the optical fiber; a sensor that detects light that is backscattered and reflected by the optical fiber; and a processor that controls the pulsed laser, receives signals from the sensor, and converts the signals into acoustic information. The controller receives the acoustic information from the processor and identifies well integrity loss.
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52.发明申请公开(公告)号：US20210389496A1
公开(公告)日：2021-12-16
申请号：US17347733
申请日：2021-06-15
摘要： An aeronautical composite structure configured to monitor a physical status of a bonded portion between structural components using a multi-core optical fiber. A method and system for monitoring the physical status of a bonded portion in an aeronautical composite structure also uses a multi-core optical fiber. More particularly, the invention relates to a structure and method for monitoring the physical status of a bonded portion of an aeronautical composite structure from its manufacturing to its use in flight using a multi-core optical fiber.
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53.发明授权公开(公告)号：US11073471B2
公开(公告)日：2021-07-27
申请号：US16514944
申请日：2019-07-17
发明人： Sandip Maity
摘要： The present disclosure is for a tool for measurement of phases in fluid in downhole applications. The tool includes a light coupler for providing a first light and for detecting a second light. The first light is provided to an optical interface and the second light is received from the optical interface. The optical interface is between the tool and the fluid. An optical path is provided that is integral or coupled to the optical interface. The optical path allows transmission of the first light into the fluid at the optical interface and also allows receiving the second light from the optical interface. The second light includes one or more light components disturbed by the fluid. A processor provides digital data associated with the measurement of phases in the fluid using optical data from at least the second light.
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公开(公告)号：US11071604B2
公开(公告)日：2021-07-27
申请号：US15847518
申请日：2017-12-19
申请人： Verb Surgical Inc.
发明人： Matthew Colin Vargas , Charles J. Scheib , Andrea Bajo , Koray Sahin , Jaime Hernandez , Robert Elliott DeCou
IPC分类号： A61B46/10 , A61B90/00 , B25J15/04 , A61B34/35 , A61B34/30 , A61B34/00 , A61B90/40 , A61B17/00 , A61B46/00 , B29C45/00 , B29C65/02 , G01V8/16 , B29L31/00
摘要： Generally, a system for use in a robotic surgical system may be used to determine an attachment state between a tool driver, sterile adapter, and surgical tool of the system. The system may include sensors used to generate attachment data corresponding to the attachment state. The attachment state may be used to control operation of the tool driver and surgical tool. In some variations, one or more of the attachment states may be visually output to an operator using one or more of the tool driver, sterile adapter, and surgical tool. In some variations, the tool driver and surgical tool may include electronic communication devices configured to be in close proximity when the surgical tool is attached to the sterile adapter and tool driver.
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公开(公告)号：US10935399B1
公开(公告)日：2021-03-02
申请号：US16661403
申请日：2019-10-23
IPC分类号： G01D5/353 , G01M11/02 , G02B6/27 , G02B6/42 , G01V8/16 , E21B47/06 , E21B47/07 , E21B47/007 , G01M11/08 , G01L1/24 , E21B47/135
摘要： An apparatus for sensing a value of a property includes: an optical sensor having a single mode optical fiber responsive to the property; an optical interrogator having a tunable laser to transmit polarized light to the optical sensor, a photo-detector to receive sensor light, and a controller configured to process the received light and output the value of the property; and a passive random depolarizer disposed between the tunable laser and the single mode optical fiber and having (i) a first polarization maintaining (PM) optical fiber of length L1 having a first fast optical axis and a first slow optical axis and (ii) a second PM optical fiber of length L2 having a second fast optical axis and a second slow optical axis rotationally spliced to the first PM optical fiber in which the second fast and slow optical axes are offset from the first fast and slow optical axes.
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公开(公告)号：US10928546B2
公开(公告)日：2021-02-23
申请号：US15532202
申请日：2016-02-05
发明人： Andrew Lewis
摘要： A fibre sensing apparatus (100) comprises an interrogation unit (104) to interrogate a sensing fibre with optical radiation, and to detect an optical signal returned from the fibre, and processing circuitry (114). A portion of the fibre may be excited with a test signal. The processing circuitry comprises an assessment module (115) to analyse the optical signal returned from the excited portion of fibre, and to determine at least one operational characteristic of the apparatus based on the detected optical signal.
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公开(公告)号：US20210032985A1
公开(公告)日：2021-02-04
申请号：US16628800
申请日：2019-02-11
IPC分类号： E21B47/135 , G01V8/16 , E21B23/14 , E21B47/01
摘要： A system includes an optical fiber integrated into a conveyance subsystem that is positionable downhole in a wellbore. The system also includes a backscattering sensor system positionable to monitor temperature and optical fiber strain along the optical fiber using backscattered light signals received from the optical fiber. Further, the system includes a fiber optic rotary joint positionable to optically couple the optical fiber with the backscattering sensor system to provide an optical path for the backscattered light signals to reach the backscattering sensor system.
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公开(公告)号：US10727702B2
公开(公告)日：2020-07-28
申请号：US16311976
申请日：2017-07-03
申请人： LG ELECTRONICS INC.
发明人： Jinho Youn , Hyokune Hwang
摘要： The present specification discloses a wireless power transmission apparatus and a method therefor. Herein, a wireless power transmission apparatus according to one embodiment of the present invention comprises: a laser light source unit; a light output unit for separating and outputting laser light generated in a laser light source into a first laser light for wireless charging and a second laser light for object detection; a light receiving unit for receiving the second laser light; and a light control unit for controlling the output of the first laser light through the second laser light received by the light receiving unit, wherein the light control unit may determine whether an object is detected or not according to the second laser light received by the light receiving unit.
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公开(公告)号：US10582980B2
公开(公告)日：2020-03-10
申请号：US15849429
申请日：2017-12-20
申请人： Verb Surgical Inc.
发明人： Charles J. Scheib , Jaime Hernandez
IPC分类号： B32B3/10 , A61B46/10 , A61B90/00 , B25J15/04 , A61B34/35 , A61B34/30 , A61B34/00 , A61B90/40 , A61B17/00 , A61B46/00 , B29C45/00 , B29C65/02 , G01V8/16 , B29L31/00
摘要： Generally, a sterile adapter for use in robotic surgery may include a frame configured to be interposed between a tool driver and a surgical tool, a plate assembly coupled to the frame, and at least one rotatable coupler supported by the plate assembly and configured to communicate torque from an output drive of the tool driver to an input drive of the surgical tool.
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公开(公告)号：US20200072645A1
公开(公告)日：2020-03-05
申请号：US16467953
申请日：2017-07-24
IPC分类号： G01D5/353 , G01V8/16 , H04B10/2507
摘要： A long-distance optical cable physical safety monitoring system, including a light source module, a light interference module, a sensing module, a reflection module, a photovoltaic conversion module, and a data processing module. The light interference module is use for dividing a light beam into multiple light beams; the sensing module is use for transmitting the multiple light beams; the reflection module is used for reflecting the multiple light beams to make the light interference module to output an interference signal; the photovoltaic conversion module is used for converting the interference signal to obtain a data signal; the data processing module is used for processing the data signal. The long-distance optical cable physical safety monitoring system is passive, low in energy consumption, anti-jamming, low in false positive rate, simple in construction, and convenient in maintenance.
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