公开(公告)号：US20180058838A1

公开(公告)日：2018-03-01

申请号：US15793177

申请日：2017-10-25

Applicant: INTUITIVE SURGICAL OPERATIONS, INC.

Inventor： Mark E. FROGGATT ,  Alexander K. SANG ,  Dawn K. GIFFORD ,  Justin W. KLEIN

IPC: G01B9/02 ,  G01L1/24 ,  G01D5/353 ,  G01B11/06

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. The compensation technique may be applied along the length of the light guide.

公开(公告)号：US20170363410A1

公开(公告)日：2017-12-21

申请号：US15674564

申请日：2017-08-11

Applicant: INTUITIVE SURGICAL OPERATIONS, INC.

Inventor： Mark E. FROGGATT ,  Justin W. KLEIN

IPC: G01B9/02 ,  G01B11/16 ,  G01D5/353 ,  G01M11/00 ,  G02B6/02

CPC classification number: G01B9/02002 ,  G01B9/02004 ,  G01B9/02044 ,  G01B11/161 ,  G01B11/18 ,  G01D5/35316 ,  G01M11/3172 ,  G02B6/02042 ,  G02B6/02085 ,  G02B6/02114 ,  G02B6/02123 ,  G02B2006/02157

Abstract: An optical sensor includes an optical fiber inscribed with densely-overlapping, chirped-frequency fiber Bragg gratings at multiple locations along the optical fiber such that light reflected from a location on the optical fiber is reflected at multiple frequencies in a range of frequencies. An entire length of the optical sensor includes densely-overlapping, chirped-frequency fiber Bragg gratings. At least two of the densely-overlapping, chirped-frequency fiber Bragg gratings overlap at every measurement point along the entire length of the optical sensor. An optical sensing system uses the optical sensor. A method of making the optical sensor is described.

公开(公告)号：US20180113051A1

公开(公告)日：2018-04-26

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

IPC: G01M11/00 ,  G01D5/353 ,  G01B9/02

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.

公开(公告)号：US20180356203A1

公开(公告)日：2018-12-13

申请号：US16044559

申请日：2018-07-25

Applicant: Intuitive Surgical Operations, Inc.

Inventor： Mark E. FROGGATT ,  Alexander K. SANG ,  Dawn K. GIFFORD ,  Justin W. KLEIN

IPC: G01B9/02 ,  G01M11/00 ,  G01L1/24 ,  G01D5/353 ,  G01B11/16 ,  G01B11/06

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: Interferometric measurement signals are detected by a single optical interferometric interrogator for a length of a sensing light guide and an interferometric measurement data set corresponding to the interferometric measurement signals is generated. The interferometric measurement data set is transformed into a spectral domain to produce a transformed interferometric measurement data set. The transformed interferometric measurement data set is compared to a baseline interferometric data set to identify a time-varying signal corresponding to a time-varying disturbance. The baseline interferometric data set is representative of the sensing light guide not being subjected to the time-varying disturbance. A compensating signal is determined from the time-varying signal and used to compensate at least a portion of the interferometric measurement data set for the time-varying disturbance as part of producing a measurement of the parameter.

公开(公告)号：US20150346053A1

公开(公告)日：2015-12-03

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. HORRELL

IPC: G01M11/00 ,  G01B9/02

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.

Abstract translation: 从包括耦合到感测干涉仪和监测干涉仪的可调谐激光源的OFDR设备产生光学频域反射测量（OFDR）测量。 感测干涉仪还耦合到波导，例如光学感测光纤。 通过OFDR测量获得的传感器干涉测量数据在频域（例如，频率）中用一个或多个参数进行处理，以补偿与感测干涉仪数据相关联的光学色散。 执行频谱域中的色散补偿的感测干涉测量数据的傅里叶变换，以在时间（例如，时间）域中提供色散补偿的OFDR测量信息。

公开(公告)号：US20170370705A1

公开(公告)日：2017-12-28

申请号：US15698707

申请日：2017-09-08

Applicant: Intuitive Surgical Operations, Inc.

Inventor： Mark E. FROGGATT ,  Justin W. KLEIN ,  Dawn K. GIFFORD ,  Stephen Tod KREGER

IPC: G01B11/24 ,  G01B11/16 ,  G01L1/24 ,  G02B6/02

CPC classification number: G01B11/24 ,  G01B11/16 ,  G01B11/168 ,  G01B11/18 ,  G01L1/242 ,  G01L1/246 ,  G02B6/02042

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.

公开(公告)号：US20160123715A1

公开(公告)日：2016-05-05

申请号：US14897973

申请日：2014-06-10

Applicant: INTUITIVE SURGICAL OPERATIONS, INC.

Inventor： Mark E. FROGGATT ,  Justin W. KLEIN

IPC: G01B9/02 ,  G02B6/02 ,  G01M11/00

CPC classification number: G01B9/02002 ,  G01B9/02004 ,  G01B9/02044 ,  G01B11/161 ,  G01B11/18 ,  G01D5/35316 ,  G01M11/3172 ,  G02B6/02042 ,  G02B6/02085 ,  G02B6/02114 ,  G02B6/02123 ,  G02B2006/02157

Abstract: An optical sensor includes an optical fiber inscribed with a repeated refraction pattern such that light scattered from a location on the optical fiber is scattered at multiple frequencies in a range of frequencies. The inscribed patterns overlap at every measurement point along at least a portion of the length of the sensor. An optical sensing system including control circuitry coupled to the optical fiber detects measurement scatter data from the optical fiber over the range of frequencies, determines a change in the detected measurement scatter data over the range of frequencies, and extracts a parameter describing a state of the optical fiber from the determined change in the detected measurement scatter data. The sensor may be made by inscribing a first light refracting pattern on the optical fiber at every measurement point along at least a portion of the length of the sensor and inscribing a second light refracting pattern on the optical fiber that overlaps the first inscribed light refracting pattern at every measurement point along at least that portion of the length of the sensor.

Abstract translation: 光学传感器包括内接有重复折射图案的光纤，使得从光纤上的位置散射的光在频率范围内以多个频率散射。 刻印图案沿着传感器长度的至少一部分在每个测量点处重叠。 包括耦合到光纤的控制电路的光学感测系统在频率范围内检测来自光纤的测量散射数据，确定在频率范围上检测到的测量散射数据的变化，并且提取描述 光纤从检测到的测量散射数据中确定的变化。 传感器可以通过沿着传感器的长度的至少一部分的每个测量点在光纤上刻上第一光折射图案并且在与第一内接光折射图案重叠的光纤上刻划第二光折射图案 在每个测量点沿传感器长度的至少那部分。