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1.发明申请公开(公告)号：US20200318951A1
公开(公告)日：2020-10-08
申请号：US16908414
申请日：2020-06-22
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Mark E. Froggatt , Justin W. Klein , Dawn K. Gifford , Stephen T. Kreger
Abstract: A multi-core fiber includes multiple optical cores, and for each different core of a set of different cores of the multiple optical cores, a total change in optical length is detected. The total change in optical length represents an accumulation of all changes in optical length for multiple segments of that different core up to a point on the multi-core fiber. A difference is determined between the total changes in optical length for cores of the set of different cores. A twist parameter and/or a bend angle associated with the multi-core fiber at the point on the multi-core fiber is/are determined based on the difference.
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公开(公告)号：US10551173B2
公开(公告)日：2020-02-04
申请号：US16506998
申请日：2019-07-09
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Mark E. Froggatt , Justin W. Klein , Dawn K. Gifford , Stephen T Kreger
Abstract: A multi-core fiber includes multiple optical cores, and for each different core of a set of different cores of the multiple optical cores, a total change in optical length is detected. The total change in optical length represents an accumulation of all changes in optical length for multiple segments of that different core up to a point on the multi-core fiber. A difference is determined between the total changes in optical length for cores of the set of different cores. A twist parameter and/or a bend angle associated with the multi-core fiber at the point on the multi-core fiber is/are determined based on the difference.
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公开(公告)号：US09885633B2
公开(公告)日：2018-02-06
申请号：US14654903
申请日：2013-12-24
Applicant: INTUITIVE SURGICAL OPERATIONS, INC.
Inventor： Evan M. Lally , Justin W. Klein , Mark E. Froggatt , Emily E. H. Templeton
CPC classification number: G01M11/3145 , G01B9/0207 , G01D5/35358 , G01D5/35393
Abstract: An optical frequency domain reflectometry (OFDR) measurement is produced from an OFDR apparatus that includes a tunable laser source coupled to a sensing interferometer and a monitor interferometer. The sensing interferometer is also coupled to a waveguide, e.g., an optical sensing fiber. Sensor interferometric data obtained by the OFDR measurement is processed in the spectral domain (e.g., frequency) with one or more parameters to compensate for the optical dispersion associated with the sensing interferometer data. A Fourier Transform of the dispersion-compensated sensing interferometric data in the spectral domain is performed to provide a dispersion-compensated OFDR measurement information in the temporal (e.g., time) domain.
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公开(公告)号：US20170003119A9
公开(公告)日：2017-01-05
申请号：US14326004
申请日：2014-07-08
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Mark E. FROGGATT , Justin W. Klein , Dawn K. Gifford , Stephen Tod Kreger
CPC classification number: G01B11/24 , G01B11/16 , G01B11/168 , G01B11/18 , G01L1/242 , G01L1/246 , G02B6/02042
Abstract: An accurate measurement method and apparatus using an optical fiber are disclosed. A total change in optical length in an optical core in the optical fiber is determined that reflects an accumulation of all of the changes in optical length for multiple segment lengths of the optical core up to a point on the optical fiber. The total change in optical length in the optical core is provided for calculation of an average strain over a length of the optical core based on the detected total change in optical length.
Abstract translation: 公开了一种使用光纤的精确测量方法和装置。 确定光纤中的光纤中的光学长度的总变化，其反映光纤的多个段长度的所有光学长度变化的累积直到光纤上的一点。 提供了光学核心中的光学长度的总变化，用于基于检测到的光学长度的总变化来计算光学核心长度上的平均应变。
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公开(公告)号：US20240044638A1
公开(公告)日：2024-02-08
申请号：US18382315
申请日：2023-10-20
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Mark E. Froggatt , Justin W. Klein , Dawn K. Gifford , Stephen T. Kreger
CPC classification number: G01B11/24 , G01B11/18 , G01L1/242 , G01M11/31 , G01M11/3172 , G01M11/025 , G01M11/3181 , G01B11/16 , G01B11/168 , G01L1/246 , G02B6/02042
Abstract: To sense the shape of a multicore optical fiber sensor, light reflected in a center and two or more helixed outer cores of the optical fiber sensor is measured, and phases associated with strain in the center and helixed outer cores is tracked along the length of the fiber sensor. Further, a wobble signal indicative of a variation in the spin rate of the fiber sensor is determined. Based on the tracked phases and the wobble signal, the fiber shape is computed.
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Patent Agency Ranking
公开(公告)号：US10921117B2
公开(公告)日：2021-02-16
申请号：US16908414
申请日：2020-06-22
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Mark E. Froggatt , Justin W. Klein , Dawn K. Gifford , Stephen T. Kreger
Abstract: A multi-core fiber includes multiple optical cores, and for each different core of a set of different cores of the multiple optical cores, a total change in optical length is detected. The total change in optical length represents an accumulation of all changes in optical length for multiple segments of that different core up to a point on the multi-core fiber. A difference is determined between the total changes in optical length for cores of the set of different cores. A twist parameter and/or a bend angle associated with the multi-core fiber at the point on the multi-core fiber is/are determined based on the difference.
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公开(公告)号：US09841269B2
公开(公告)日：2017-12-12
申请号：US14362759
申请日：2012-12-03
Applicant: INTUITIVE SURGICAL OPERATIONS, INC.
Inventor： Mark E. Froggatt , Alexander K. Sang , Dawn K. Gifford , Justin W. Klein
CPC classification number: G01B9/0207 , G01B9/02004 , G01B9/02069 , G01B9/02072 , G01B9/02076 , G01B9/02083 , G01B9/0209 , G01B11/0658 , G01B11/18 , G01D5/3537 , G01L1/242 , G01M11/3172
Abstract: An optical interrogation system, e.g., an OFDR-based system, measures local changes, of index of refraction of a sensing light guide subjected to a time-varying disturbance. Interferometric measurement signals detected for a length of the sensing light guide are transformed into the spectral domain. A time varying signal is determined from the transformed interferometric measurement data set. A compensating signal is determined from the time varying signal which is used to compensate the interferometric measurement data set for the time-varying disturbance. Further robustness is achieved using averaging and strain compensation. The compensation technique may be applied along the length of the light guide.
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公开(公告)号：US20140320846A1
公开(公告)日：2014-10-30
申请号：US14326004
申请日：2014-07-08
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Mark E. FROGGATT , Justin W. Klein , Dawn K. Gifford , Stephen Tod Kreger
CPC classification number: G01B11/24 , G01B11/16 , G01B11/168 , G01B11/18 , G01L1/242 , G01L1/246 , G02B6/02042
Abstract: An accurate measurement method and apparatus using an optical fiber are disclosed. A total change in optical length in an optical core in the optical fiber is determined that reflects an accumulation of all of the changes in optical length for multiple segment lengths of the optical core up to a point on the optical fiber. The total change in optical length in the optical core is provided for calculation of an average strain over a length of the optical core based on the detected total change in optical length.
Abstract translation: 公开了一种使用光纤的精确测量方法和装置。 确定光纤中的光纤中的光学长度的总变化，其反映光纤的多个段长度的所有光学长度变化的累积直到光纤上的一点。 提供了光学核心中的光学长度的总变化，用于基于检测到的光学长度的总变化来计算光学核心长度上的平均应变。
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公开(公告)号：US10545070B2
公开(公告)日：2020-01-28
申请号：US15848415
申请日：2017-12-20
Applicant: INTUITIVE SURGICAL OPERATIONS, INC.
Inventor： Evan M. Lally , Justin W. Klein , Mark E. Froggatt , Emily E. H. Templeton
Abstract: An optical frequency domain reflectometry (OFDR) measurement is produced from an OFDR apparatus that includes a tunable laser source coupled to a sensing interferometer and a monitor interferometer. The sensing interferometer is also coupled to a waveguide, e.g., an optical sensing fiber. Sensor interferometric data obtained by the OFDR measurement is processed in the spectral domain (e.g., frequency) with one or more parameters to compensate for the optical dispersion associated with the sensing interferometer data. A Fourier Transform of the dispersion-compensated sensing interferometric data in the spectral domain is performed to provide a dispersion-compensated OFDR measurement information in the temporal (e.g., time) domain.
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10.发明申请公开(公告)号：US20190331479A1
公开(公告)日：2019-10-31
申请号：US16506998
申请日：2019-07-09
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Mark E. Froggatt , Justin W. Klein , Dawn K. Gifford , Stephen T. Kreger
Abstract: A multi-core fiber includes multiple optical cores, and for each different core of a set of different cores of the multiple optical cores, a total change in optical length is detected. The total change in optical length represents an accumulation of all changes in optical length for multiple segments of that different core up to a point on the multi-core fiber. A difference is determined between the total changes in optical length for cores of the set of different cores. A twist parameter and/or a bend angle associated with the multi-core fiber at the point on the multi-core fiber is/are determined based on the difference.
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