公开(公告)号：US20180202286A1

公开(公告)日：2018-07-19

申请号：US15527673

申请日：2016-05-11

Applicant: Halliburton Energy Services, Inc.

Inventor： Satyan Gopal Bhongale ,  Daniel Joshua Stark

IPC: E21B47/12 ,  E21B47/06 ,  E21B47/00 ,  G01K11/32 ,  H04B10/2537 ,  G08C23/06

CPC classification number: E21B47/123 ,  E21B47/0006 ,  E21B47/06 ,  E21B47/065 ,  G01D5/35361 ,  G01D5/35364 ,  G01K11/32 ,  G01K11/3206 ,  G01K2011/322 ,  G01K2011/324 ,  G01L1/246 ,  G08C23/06 ,  H04B10/25 ,  H04B10/2537 ,  H04B10/541

Abstract: The disclosed embodiments include a method and fiber optic cable to provide optical pulses for sensing, and an optical telemetry system. In one embodiment, the method includes sequentially transmitting a plurality of optical pulses through a first end of a first optical fiber disposed in a first section of a wellbore. The plurality of optical pulses is combined into a combined optical pulse at a distance from the first end of the first optical fiber. The method further includes transmitting the combined optical pulse through a second optical fiber disposed in a second section of the wellbore, and the second optical fiber includes a second dispersion value, where an absolute value of the first dispersion value is greater than an absolute value of the second dispersion value.

公开(公告)号：US20180156643A1

公开(公告)日：2018-06-07

申请号：US15572646

申请日：2015-05-08

Applicant: Fugro Technology B.V.

Inventor： German Enrique KNOPPERS ,  Thomas Theodorus Nicolaas Johannes WAGEMAKERS ,  Devrez Mehmet KARABACAK ,  Rudolf Klaas VAN BEELEN ,  Bastiaan MEULBLOK

IPC: G01D5/353 ,  G01L1/24 ,  G01H9/00 ,  G01P15/093

CPC classification number: G01D5/35377 ,  G01D5/35316 ,  G01H9/004 ,  G01L1/246 ,  G01L5/0057 ,  G01P15/093 ,  G01P2015/0837 ,  G01P2015/0857

Abstract: The invention is directed at an optical sensor device, comprising a sensing element for receiving an input action, an optical fiber comprising an intrinsic fiber optic sensor, and a transmission structure arranged for exerting a sensing action on the optical fiber in response to the input action received by the sensing element, wherein the optical fiber in a first connecting part thereof is connected to a reference body and wherein the optical fiber in a second connecting part thereof is to the transmission structure for receiving the sensing action, the first connecting part and the second connecting part of the optical fiber being located on either side of the intrinsic fiber optic sensor, wherein the transmission structure comprises a bi-stable spring having a first and a second stable deflection position and a negative stiffness range around an unstable equilibrium position between the first and second stable deflection position, and wherein the optical fiber between the transmission structure and the reference body is pre-stressed such as to be tensed, said optical fiber thereby acting as a spring having a first spring constant of positive value, wherein the optical fiber thereby counteracts a spring action of the bi-stable spring such as to operate the bi-stable spring in a deflection position range within the negative stiffness range, the deflection position range not including the unstable equilibrium position of the bi-stable spring.

公开(公告)号：US20180149532A1

公开(公告)日：2018-05-31

申请号：US15572594

申请日：2015-05-08

Applicant: Fugro Technology B.V.

Inventor： Martijn MATTHIJSSEN ,  Bastiaan MEULBLOK ,  German Enrique KNOPPERS ,  Devrez Mehmet KARABACAK

IPC: G01L1/24 ,  G01L5/00 ,  G01D5/353 ,  G01P15/093 ,  G01P15/18 ,  G01H9/00

CPC classification number: G01L1/246 ,  G01D5/35316 ,  G01H9/004 ,  G01L5/0033 ,  G01P15/093 ,  G01P15/18 ,  G01P2015/0828 ,  G01P2015/0837 ,  G01V1/186

Abstract: The invention relates to an optical sensor device comprising a reference body and at least one sensing transducer. The sensing transducer is arranged for receiving an input action, and is movably arranged relative to the reference body for moving relative to the reference body in response to the input action. The device further comprises an optical fiber and one or more transmission arms including a first transmission arm. The optical fiber comprises an intrinsic fiber optic sensor. The optical fiber is connected with a first connecting part thereof to the first transmission arm and with a second connecting part thereof to an element exterior to said first transmission arm. The first connecting part and the second connecting part are on either side of the intrinsic fiber optic sensor. For receiving the input action, a base of the first transmission arm is connected at a first part thereof with the reference body and with a second part thereof with the sensing transducer. The optical fiber is connected at a location along the first transmission arm remote from the base thereby converting the input action received by the sensing transducer into a sensing action applied to the optical fiber such as to modify strain in the optical fiber dependent on said input action.

公开(公告)号：US09971052B2

公开(公告)日：2018-05-15

申请号：US14911574

申请日：2014-08-15

Applicant: FUGRO TECHNOLOGY B.V.

Inventor： Wim De Jong ,  Bastiaan Meulblok ,  Devrez Mehmet Karabacak ,  German Enrique Knoppers ,  Rudy Van Beelen

IPC: G01L1/24 ,  G01H9/00 ,  G01L11/02 ,  G01V1/38 ,  G01V1/18 ,  G01V8/02 ,  G01L9/00

CPC classification number: G01V1/38 ,  G01H9/004 ,  G01L1/246 ,  G01L9/0039 ,  G01L11/025 ,  G01V1/187 ,  G01V8/02 ,  G01V2210/1423

Abstract: An optical pressure sensor device (1) comprises: —a chamber (2) filled with pressure transfer medium and having at least one window (4) transparent to pressure waves; —an optical fiber (7) with a Fiber Bragg Grating (8); —a first pressure-sensitive mounting assembly (100) arranged within the chamber, holding the optical fiber; —a second pressure-sensitive mounting assembly (200) arranged within the chamber, holding the optical fiber. —The first pressure-sensitive mounting assembly, the second pressure-sensitive mounting assembly, and a static pressure compensation assembly (300) comprise pairs of bellows arranged on opposite sides of the fiber (7). —The bellows (310, 320) of the static pressure compensation assembly have their interior in fluid communication with the pressure transfer medium in the chamber via a choke channel (314, 324), and have very low static stiffness.

公开(公告)号：US09952107B2

公开(公告)日：2018-04-24

申请号：US14100924

申请日：2013-12-09

Applicant: Intuitive Surgical Operations, Inc.

Inventor： Stephen J. Blumenkranz ,  Christopher J. Hasser

IPC: A61B19/00 ,  G01L1/00 ,  G01L1/24 ,  A61B34/00 ,  A61B34/30 ,  A61B34/37 ,  A61B17/00 ,  A61B90/00

CPC classification number: G01L1/246 ,  A61B34/30 ,  A61B34/37 ,  A61B34/71 ,  A61B90/06 ,  A61B2017/00477 ,  A61B2034/305 ,  A61B2090/064

Abstract: In one embodiment, a force sensor apparatus is provided including a tube portion having a plurality of radial ribs and a strain gauge positioned over each of the plurality of radial ribs, a proximal end of the tube portion that operably couples to a shaft of a surgical instrument that operably couples to a manipulator arm of a robotic surgical system, and a distal end of the tube portion that proximally couples to a wrist joint coupled to an end effector.

公开(公告)号：US20180088274A1

公开(公告)日：2018-03-29

申请号：US15653947

申请日：2017-07-19

Applicant: LGS Innovations LLC

Inventor： Jane D. LeGrange ,  Mihaela Dinu ,  Alex Pidwerbetsky

IPC: G02B6/12 ,  G02F1/00 ,  G01D5/353 ,  G01J9/02 ,  G01K11/32 ,  G01L1/24

CPC classification number: G02B6/12 ,  G01D5/35316 ,  G01J9/0246 ,  G01K11/3206 ,  G01L1/246 ,  G02F1/0018

Abstract: A slot waveguide for electro-optic modulation is provided. The slot waveguide includes a slot and Bragg gratings defined by outer walls of the slot. The Bragg gratings are configured to slow an optical signal. The slot defines a low-refractive index region and the Bragg gratings spaced apart by the slot define a high-refractive index region. The slot waveguide includes a pair of electrodes extending parallel and adjacent to the slot waveguide. The electrodes are configured to carry an electrical modulation signal to induce a change in a phase of the optical signal. The slot of the slot waveguide is at least partially filled with an electro-optic polymeric material poled in a direction orthogonal to a direction of propagation of the optical signal in the slot waveguide.

公开(公告)号：US20180072159A1

公开(公告)日：2018-03-15

申请号：US15264807

申请日：2016-09-14

Applicant: GM Global Technology Operations LLC

Inventor： CHARLES W. WAMPLER II ,  Brian J. Koch ,  Mark W. Verbrugge

IPC: B60L3/00 ,  G01L1/24 ,  G01K11/32 ,  G01R31/36 ,  H01M10/48 ,  H01M10/42

CPC classification number: B60L3/0046 ,  B60L58/12 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  G01K11/3206 ,  G01L1/246 ,  G01R31/3644 ,  H01M10/425 ,  H01M10/4257 ,  H01M10/48 ,  H01M10/486 ,  H01M2010/4271 ,  H01M2010/4278 ,  H01M2220/20 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705

Abstract: A number of variations may include a product comprising: an electrochemical device comprising an anode and a cathode, and at least one sensor comprising a plurality of strain sensing components and at least one temperature sensing component wherein each of the anode and the cathode comprises at least one strain sensing component comprising an optical fiber comprising at least one grating, wherein the at least one sensor is constructed and arranged to provide measurements that derive both state of charge and temperature of the anode and the cathode simultaneously.

公开(公告)号：US09880029B2

公开(公告)日：2018-01-30

申请号：US15287259

申请日：2016-10-06

Applicant: Avalon Sciences Ltd

Inventor： James Kengo Andersen ,  Eric Lee Goldner ,  Agop Hygasov Cherbettchian ,  Gerald Robert Baker ,  David T. Beatson

IPC: G01D5/353 ,  G01B9/02 ,  G02B6/02 ,  G01L1/24 ,  G01H9/00 ,  G01V1/18 ,  G01P15/093

CPC classification number: G01D5/35312 ,  G01B9/0201 ,  G01B9/02014 ,  G01B9/02015 ,  G01B9/02027 ,  G01B9/0205 ,  G01D5/35316 ,  G01D5/35377 ,  G01H9/004 ,  G01L1/246 ,  G01P15/093 ,  G01V1/181 ,  G02B6/022

Abstract: A fiber optic transducer is provided. The fiber optic transducer includes a fixed portion configured to be secured to a body of interest, a moveable portion having a range of motion with respect to the fixed portion, a spring positioned between the fixed portion and the moveable portion, and a length of fiber wound between the fixed portion and the moveable portion. The length of fiber spans the spring. The fiber optic transducer also includes a mass engaged with the moveable portion. In one disclosed aspect of the transducer, the mass envelopes the moveable portion.

公开(公告)号：US20170333117A1

公开(公告)日：2017-11-23

申请号：US15671859

申请日：2017-08-08

Applicant: COVIDIEN LP

Inventor： DUANE E. KERR

IPC: A61B18/14 ,  G01K11/32 ,  A61B18/12 ,  G01L1/24 ,  A61B18/00 ,  A61B17/00 ,  A61B90/00

CPC classification number: A61B18/1477 ,  A61B18/1206 ,  A61B2017/00057 ,  A61B2017/00061 ,  A61B2017/00115 ,  A61B2018/00178 ,  A61B2018/00577 ,  A61B2018/00791 ,  A61B2018/00875 ,  A61B2018/1425 ,  A61B2090/064 ,  G01D5/35316 ,  G01K11/3206 ,  G01L1/246

Abstract: A surgical device is disclosed, and includes a probe having a handle assembly and an electrode assembly extending distally therefrom. An optical member is disposed on the probe and has a first set of light transmitting properties corresponding to a first set of physical parameters of the probe. The probe is configured to transition to a second set of physical parameters, the second set of physical parameters being different from the first set of physical parameters. The optical member is configured to transition from the first set of light transmitting properties to a second set of light transmitting properties, the second set of light transmitting properties corresponding to the second set of physical parameters, the second set of light transmitting properties being different from the first set of light transmitting properties.

公开(公告)号：US20170328700A1

公开(公告)日：2017-11-16

申请号：US15590208

申请日：2017-05-09

Applicant: ABB Schweiz AG

Inventor： Kathryn F. Murphy ,  Sheng Zhong ,  Cherif Ghoul

IPC: G01B7/16 ,  G01M5/00 ,  B65D63/10 ,  G01D11/30 ,  B65D63/00

CPC classification number: G01B7/16 ,  B65D63/00 ,  B65D63/10 ,  B65D63/1027 ,  G01B11/18 ,  G01D11/30 ,  G01L1/246 ,  G01M5/00 ,  G01M5/0008 ,  G01M5/0041

Abstract: A cable tie having a strain sensing device incorporated therein. In one embodiment, the strain sensing device is a fiber Bragg grating (FBG), which is preferably molded within the strap. In this case, the cable tie further includes a socket in optical communication with the fiber Bragg grating for coupling of the cable tie to an external light source. In another embodiment, the strain sensing device is a mechanical fuse that activates in the presence of a predetermined amount of strain on the cable tie. The mechanical fuse is preferably disposed on the strap and is made of a fuse material having a mechanical strength lower than a mechanical strength of the material of the strap so that the mechanical fuse will fracture or deform earlier than the material of the underlying strap when both the fuse and the strap experience the same increasing strain.