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公开(公告)号：US10677945B2
公开(公告)日：2020-06-09
申请号：US14402876
申请日：2013-05-24
Applicant: Optoplan AS
Inventor： Roar Furuhaug , Jon Thomas Kringlebotn
Abstract: The invention relates to a hydrophone housing. The housing comprises an outer casing with an exterior shape being in close contact with sediment when buried therein and having a deflectable wall part. Solid material partly fills the casing to define an outer chamber behind the deflectable wall part, a cavity shaped so that an inner chamber is defined immediately surrounding a hydrophone sensing element held therein, and a first duct for liquid flow communication between the outer chamber and the cavity or an internal volume of the hydrophone sensing element. Thereby, a hydraulic coupling is provided so that an acoustic pressure causing small radial displacements of outer surface of the housing will, via liquid in the first duct, cause large radial displacements of the hydrophone sensitive element. The area of the deflectable wall part is much larger than the area of the sensitive element so that only small displacements of the housing are required to cause large displacements at the hydrophone sensing element.
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2.发明申请公开(公告)号：US20150100279A1
公开(公告)日：2015-04-09
申请号：US14510537
申请日：2014-10-09
Applicant: Optoplan AS
Inventor： Erlend RONNEKLEIV , Ole Henrik Waagaard
CPC classification number: G01B9/02075 , G01B9/02056 , G01B9/0207 , G01D5/35335 , G01D5/35387 , G01D5/3539 , G01H9/004 , G01V1/186
Abstract: A method of processing data from a distributed fibre-optic interferometric sensor system for measuring a measurand, the system comprising multiple interferometric sensors. The method comprises interrogating two or more of the multiple interferometric sensors to record a raw measurement time series for each of the sensors. The method further comprises calculating a common reference time series as a measure of central tendency of the raw measurement time series from two or more reference sensors, the reference sensors being selected from the multiple interferometric sensors. Finally, the method comprises compensating at least one raw measurement time series from a measurement sensor selected from the multiple interferometric sensors with the common reference time series to produce a compensated measurement time series, the measurement sensor being configured to be sensitive to the measurand. The invention further relates to a distributed fibre-optic interferometric sensor system.
Abstract translation: 一种从用于测量被测量的分布式光纤干涉测量传感器系统处理数据的方法，所述系统包括多个干涉测量传感器。 该方法包括询问多个干涉测量传感器中的两个或更多个以记录每个传感器的原始测量时间序列。 该方法还包括计算公共参考时间序列作为来自两个或更多个参考传感器的原始测量时间序列的集中趋势的度量，参考传感器从多个干涉测量传感器中选择。 最后，该方法包括从具有公共参考时间序列的多个干涉测量传感器中选择的测量传感器补偿至少一个原始测量时间序列，以产生经补偿的测量时间序列，测量传感器被配置为对被测量敏感。 本发明还涉及分布式光纤干涉测量传感器系统。
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公开(公告)号：US20150085618A1
公开(公告)日：2015-03-26
申请号：US14402876
申请日：2013-05-24
Applicant: Optoplan AS
Inventor： Roar Furuhaug , Jon Thomas Kringlebotn
IPC: G01V1/18
Abstract: The invention relates to a hydrophone housing. The housing comprises an outer casing with an exterior shape being in close contact with sediment when buried therein and having a deflectable wall part. Solid material partly fills the casing to define an outer chamber behind the deflectable wall part, a cavity shaped so that an inner chamber is defined immediately surrounding a hydrophone sensing element held therein, and a first duct for liquid flow communication between the outer chamber and the cavity or an internal volume of the hydrophone sensing element. Thereby, a hydraulic coupling is provided so that an acoustic pressure causing small radial displacements of outer surface of the housing will, via liquid in the first duct, cause large radial displacements of the hydrophone sensitive element. The area of the deflectable wall part is much larger than the area of the sensitive element so that only small displacements of the housing are required to cause large displacements at the hydrophone sensing element.
Abstract translation: 本发明涉及一种水听器壳体。 壳体包括外壳，其外部形状在埋入其中时与沉积物紧密接触并具有可偏转的壁部分。 固体材料部分地填充壳体以限定可偏转壁部分后面的外室，空腔成形为使得内室被定义成立即围绕保持在其中的水听器感测元件，并且第一管道用于在外室和 空腔或水听器感测元件的内部容积。 因此，提供液压联接器，使得通过第一管道中的液体导致壳体的外表面的小的径向位移的声压将引起水听器敏感元件的大的径向位移。 可偏转壁部分的面积比敏感元件的面积大得多，因此仅需要壳体的较小位移才能在水听器感测元件处引起大的位移。
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公开(公告)号：US10247581B2
公开(公告)日：2019-04-02
申请号：US15306832
申请日：2015-04-28
Applicant: OPTOPLAN AS
Inventor： Erlend Ronnekleiv , Ole Henrik Waagaard
Abstract: The invention relates to a method of interrogating an interferometric optical fiber sensor system including a laser source configured to generate interrogation light and a sensor array with at least a first reflector and a second reflector. The method includes continuously and repeatedly frequency sweeping the interrogation light from the laser source within a sweep bandwidth (SWB) over a sweep duration (tsw) with a substantially constant sweep rate r=SBW/tsw to produce a swept interrogation light signal, launching the swept interrogation light signal into the sensor array, detecting reflected signals being returned from the sensor array by each of the reflectors, respectively, wherein detection includes mixing a return light signal from the sensor array with a local oscillator signal onto an optical receiver to produce an electrical radio frequency signal, demultiplexing the electrical radio frequency signal into a first signal channel and a second signal channel, corresponding to the first and second reflector, respectively, demodulating each of the first and second signal channel into a first phase response from the first reflector and a second phase response from the second reflector, and subtracting the first phase response from the second phase response to obtain a sensor phase signal.
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公开(公告)号：US20140104982A1
公开(公告)日：2014-04-17
申请号：US14105684
申请日：2013-12-13
Applicant: Optoplan AS
Inventor： Arne BERG , Torbjorn Heglum , Roar Furuhaug , Tormod Bliksas
IPC: G01V1/20
CPC classification number: G01V1/201 , G01V1/38 , G01V2210/1427 , Y10T29/49117
Abstract: Methods and apparatus for cable termination and sensor integration at a sensor station within an ocean bottom seismic (OBS) cable array are disclosed. The sensor stations include a housing for various sensor components. Additionally, the sensor stations can accommodate an excess length of any data transmission members which may not be cut at the sensor station while enabling connection of one or more cut data transmission members with the sensor components. The sensor stations further manage any strength elements of the cable array.
Abstract translation: 公开了在海底地震（OBS）电缆阵列内的传感器站处的电缆终端和传感器集成的方法和装置。 传感器站包括用于各种传感器部件的壳体。 此外，传感器站可以容纳任何数据传输构件的多余长度，这些数据传输构件可以在传感器站处不被切割，同时能够使一个或多个切割数据传输构件与传感器部件连接。 传感器站进一步管理电缆阵列的任何强度元件。
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Patent Agency Ranking
公开(公告)号：US20180188077A1
公开(公告)日：2018-07-05
申请号：US15306832
申请日：2015-04-28
Applicant: OPTOPLAN AS
Inventor： Erlend Ronnekleiv , Ole Henrik Waagaard
CPC classification number: G01D5/266 , G01B9/02 , G01B2290/70 , G01D5/268
Abstract: The invention relates to a method of interrogating an interferometric optical fibre sensor system including a laser source configured to generate interrogation light and a sensor array with at least a first reflector and a second reflector. The method includes continuously and repeatedly frequency sweeping the interrogation light from the laser source within a sweep bandwidth (SWB) over a sweep duration (tsw) with a substantially constant sweep rate r=SBW/tsw to produce a swept interrogation light signal, launching the swept interrogation light signal is launched into the sensor array, detecting reflected signals being returned from the sensor array by each of the reflectors, respectively, wherein detection includes mixing a return light signal from the sensor array with a local oscillator signal onto an optical receiver to produce an electrical radio frequency signal, demultiplexing the electrical radio frequency signal into a first signal channel and a second signal channel, corresponding to the first and second reflector, respectively, demodulating each of the first and second signal channel into a first phase response from the first reflector and a second phase response from the second reflector, and subtracting the first phase response from the second phase response to obtain a sensor phase signal.
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公开(公告)号：US09703007B2
公开(公告)日：2017-07-11
申请号：US14046169
申请日：2013-10-04
Applicant: Optoplan AS
Inventor： Arne Berg , Jon Thomas Kringlebotn
IPC: H01R43/00 , G01V13/00 , G01P15/093 , G01V1/20
CPC classification number: G01V13/00 , G01P15/093 , G01V1/201 , Y10T29/49826
Abstract: There is provided a solid seismic streamer cable for use in seismic surveying in marine environments. The streamer is characterized by a buffer layer 2 which is provided with a cut-out 50 and a sensor element arranged in the cut-out 50. There is also provided an associated hydrophone for integration into the seismic streamer cable. The hydrophone is characteristic in a split-element sensor base 10, 11 being suited for efficient mounting into the cut-outs 50 of the seismic cable. There is also provided an associated accelerometer for integration into the seismic streamer cable. The accelerometer is characteristic by a split-element sensor base 30, 35 for being efficiently arranged into the cut-outs 50 of the seismic cable. A method of producing a seismic streamer cable according to the invention incorporating a hydrophone or accelerometer according to the invention is also provided.
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公开(公告)号：US10001362B2
公开(公告)日：2018-06-19
申请号：US14510537
申请日：2014-10-09
Applicant: Optoplan AS
Inventor： Erlend Ronnekleiv , Ole Henrik Waagaard
CPC classification number: G01B9/02075 , G01B9/02056 , G01B9/0207 , G01D5/35335 , G01D5/35387 , G01D5/3539 , G01H9/004 , G01V1/186
Abstract: A method of processing data from a distributed fibre-optic interferometric sensor system for measuring a measurand, the system comprising multiple interferometric sensors. The method comprises interrogating two or more of the multiple interferometric sensors to record a raw measurement time series for each of the sensors. The method further comprises calculating a common reference time series as a measure of central tendency of the raw measurement time series from two or more reference sensors, the reference sensors being selected from the multiple interferometric sensors. Finally, the method comprises compensating at least one raw measurement time series from a measurement sensor selected from the multiple interferometric sensors with the common reference time series to produce a compensated measurement time series, the measurement sensor being configured to be sensitive to the measurand. The invention further relates to a distributed fibre-optic interferometric sensor system.
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公开(公告)号：US09482767B2
公开(公告)日：2016-11-01
申请号：US14105684
申请日：2013-12-13
Applicant: Optoplan AS
Inventor： Arne Berg , Torbjorn Heglum , Roar Furuhaug , Tormod Bliksas
CPC classification number: G01V1/201 , G01V1/38 , G01V2210/1427 , Y10T29/49117
Abstract: Methods and apparatus for cable termination and sensor integration at a sensor station within an ocean bottom seismic (OBS) cable array are disclosed. The sensor stations include a housing for various sensor components. Additionally, the sensor stations can accommodate an excess length of any data transmission members which may not be cut at the sensor station while enabling connection of one or more cut data transmission members with the sensor components. The sensor stations further manage any strength elements of the cable array.
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公开(公告)号：US20140033501A1
公开(公告)日：2014-02-06
申请号：US14046169
申请日：2013-10-04
Applicant: Optoplan AS
Inventor： Arne Berg , Jon Thomas Kringlebotn
IPC: G01V13/00
CPC classification number: G01V13/00 , G01P15/093 , G01V1/201 , Y10T29/49826
Abstract: There is provided a solid seismic streamer cable for use in seismic surveying in marine environments. The streamer is characterised by a buffer layer 2 which is provided with a cut-out 50 and a sensor element arranged in the cut-out 50. There is also provided an associated hydrophone for integration into the seismic streamer cable. The hydrophone is characteristic in a split-element sensor base 10, 11 being suited for efficient mounting into the cut-outs 50 of the seismic cable. There is also provided an associated accelerometer for integration into the seismic streamer cable. The accelerometer is characteristic by a split-element sensor base 30, 35 for being efficiently arranged into the cut-outs 50 of the seismic cable. A method of producing a seismic streamer cable according to the invention incorporating a hydrophone or accelerometer according to the invention is also provided.
Abstract translation: 提供了一种用于海洋环境中的地震测量的坚实的地震拖缆。 拖缆的特征在于缓冲层2，其设置有切口50和布置在切口50中的传感器元件。还提供了用于集成到地震拖缆电缆中的相关联的水听器。 水听器在分体元件传感器基座10,11中是特征，适合于有效地安装到地震电缆的切口50中。 还提供了一种用于集成到地震拖缆中的相关加速度计。 加速度计的特征在于分离元件传感器基座30,35，用于有效地布置在地震电缆的切口50中。 还提供了根据本发明的制造包括水听器或加速度计的地震拖缆的方法。
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