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1.发明授权Apparatus for acoustic detection of particles in a flow using a fiber optic interferometer 有权用于使用光纤干涉仪对流中的颗粒进行声学检测的装置公开(公告)号：US07072044B2
公开(公告)日：2006-07-04
申请号：US10363760
申请日：2001-08-30
IPC分类号： G01B9/02
CPC分类号： G01N15/02 , E21B47/101 , E21B47/123 , G01H9/004 , G01N15/04 , G01N2015/0046
摘要： Fiber optic particle detector for measurements in a fluid flow, comprising an optical fiber (2,3,12) being acoustically coupled to a mechanical element (11,13,14) adapted to be acoustically coupled to the flow, a fiber optic interferometer (54,56) and a light source (12,51,55) providing light in said optical fiber.
摘要翻译： 用于在流体流中测量的光纤粒子检测器，包括声学耦合到适于声学耦合到所述流的机械元件（11,13,14）的光纤（2,3,12），光纤干涉仪（ 54,56）和在所述光纤中提供光的光源（12,51,55）。
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公开(公告)号：US07003184B2
公开(公告)日：2006-02-21
申请号：US09950252
申请日：2001-09-07
IPC分类号： G02B6/00
CPC分类号： G01N21/45 , A61B5/01 , A61B5/02154 , A61B5/036 , A61B2562/0266 , G01N21/774 , G01N2021/7723 , G02B6/022 , G02B6/241
摘要： A body compatible fiber optic sensor probe for invasive medical use is provided. The probe includes at least one sensing location at which the fiber is configured to provide at least one detectable changeable optical property responsive to strain within the fiber, and at least one sensing element which undergoes a volumetric change in response to an in body parameter to be sensed. The sensing element is coupled to the fiber in such a way that the volumetric change induces strain within the fiber so as to vary the detectable optical property or properties.
摘要翻译： 提供了一种用于侵入性医疗用途的身体兼容的光纤传感器探头。 探针包括至少一个感测位置，在该感测位置处，纤维被配置成提供响应于光纤内的应变的至少一个可检测的可变化的光学特性，以及至少一个感测元件，其响应于体内参数经历体积变化 感觉到。 感测元件以这样的方式耦合到纤维，使得体积变化引起纤维内的应变，以便改变可检测的光学性质或性质。
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公开(公告)号：US5844927A
公开(公告)日：1998-12-01
申请号：US618789
申请日：1996-03-20
CPC分类号： G01L9/0076 , G01F1/383 , G01L11/025 , H01S3/0675 , H01S3/0809 , H01S3/102
摘要： An optical end-pumped fiber laser doped with one or more rare-earths and with distributed feedback (DFB) via a fiber Bragg-grating, which is oscillating on two orthogonally polarized wavelengths. The distance between the wavelengths may be tuned by changing the birefringence of the fiber. The laser may be applied as a polarimetric sensor in which an asymmetrical force changes the wavelength separation, or as a tunable two-wavelength source. A particular preferred field of application is for measuring the pressure in pipes, to determine the flow.
摘要翻译： 掺杂有一个或多个稀土并具有分布反馈（DFB）的光学末端泵浦光纤激光器，其经由两个正交极化波长振荡的光纤布拉格光栅。 可以通过改变光纤的双折射来调节波长之间的距离。 可以将激光器用作偏光传感器，其中不对称力改变波长间隔，或作为可调谐的双波长源。 特别优选的应用领域是用于测量管道中的压力，以确定流量。
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公开(公告)号：US07551517B2
公开(公告)日：2009-06-23
申请号：US11381922
申请日：2006-05-05
申请人： Arne Berg , Erlend Ronnekleiv , Ole Henrik Waagaard , Jon Thomas Kringlebotn , Hilde Nakstad , Roar Furuhaug
发明人： Arne Berg , Erlend Ronnekleiv , Ole Henrik Waagaard , Jon Thomas Kringlebotn , Hilde Nakstad , Roar Furuhaug
CPC分类号： G01V1/16
摘要： A seismic sensor station includes a housing containing a fiber optic hydrophone and a fiber optic accelerometer that can both be made from a single length of optical fiber arranged inside the housing. The fiber optic accelerometer is arranged in a liquid/oil filled compartment of the housing for dampening of mechanical resonances in the accelerometer due to mechanical disturbances and pressure fluctuations.
摘要翻译： 地震传感器站包括容纳光纤水听器和光纤加速度计的外壳，光纤加速度计都可以由布置在壳体内部的单个长度的光纤制成。 光纤加速度计布置在壳体的液体/油填充室中，用于由于机械干扰和压力波动而阻尼加速度计中的机械谐振。
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公开(公告)号：US07157693B2
公开(公告)日：2007-01-02
申请号：US11348002
申请日：2006-02-06
CPC分类号： G01D5/3539 , G01D5/35316 , G01D5/35387 , G02B6/2932 , G02B6/29382
摘要： An optical wavelength readout system for application in optical sensing systems is disclosed. The system includes a Master unit including a wavelength swept optical source for launching light into a string of optical sensors, and a detection and processing unit for detecting and processing the light emitted by the source. The system also includes a Slave unit including a light coupling device for coupling light from the light source into the string of sensors and for coupling light reflected from the string of sensors to a detection and processing unit arranged to detect and process the reflected light. The Master unit includes a wavelength reference unit adapted to make a reference signal available to other parts of the sensing system. The reference signal represents a generally exact relation between the wavelength of the light emitted from the source and time.
摘要翻译： 公开了一种用于光学传感系统中的光学波长读出系统。 该系统包括：主单元，包括用于将光发射到一串光学传感器中的波长扫描光源;以及检测和处理单元，用于检测和处理由源发射的光。 该系统还包括从单元，其包括用于将来自光源的光耦合到传感器串中并用于将从传感器串反射的光耦合到被布置成检测和处理反射光的检测和处理单元的光耦合装置。 主单元包括适于使参考信号可用于感测系统的其它部分的波长参考单元。 参考信号表示从源发射的光的波长与时间之间的一般精确关系。
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公开(公告)号：US07679994B2
公开(公告)日：2010-03-16
申请号：US11932116
申请日：2007-10-31
IPC分类号： G01V1/00
CPC分类号： G01D5/35383 , G01V1/20
摘要： Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in which sensor stations are efficiently deployed in a modular fashion as series of array cable modules deployed along a multi-fiber cable.
摘要翻译： 提供了地震传感器系统和传感器站拓扑，以及相应的电缆和传感器站组件，制造和部署技术。 对于一些实施例，提供了光学海底地震（OBS）站的网络，其中传感器站以模块化方式被有效地部署为沿着多光纤缆线部署的一系列阵列电缆模块。
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公开(公告)号：US06888125B2
公开(公告)日：2005-05-03
申请号：US10017707
申请日：2001-12-12
CPC分类号： G01D5/35383 , G01D5/35303 , H01S3/0675
摘要： A fiber optic sensor system comprises at least one measuring sensor 1 providing an optical output dependent upon one or more parameters to be measured, e.g. temperature, and at least one reference sensor 2 providing a reference output for comparison with the measuring sensor output. The reference sensor is provided in a birefringent fiber.The system includes a detecting means 13,14 whereby a reference beat signal f2 is derived by measuring the optical frequency splitting between frequency components in different polarization planes of the reference sensor output. A further beat signal f3 is generated between the measuring and reference sensor outputs, such beat signals being used to derive a measurement of one or more parameters.
摘要翻译： 光纤传感器系统包括至少一个测量传感器1，其提供取决于待测量的一个或多个参数的光输出，例如， 温度和至少一个参考传感器2，其提供用于与测量传感器输出比较的参考输出。 参考传感器设置在双折射光纤中。 该系统包括检测装置13,14，借此通过测量参考传感器输出的不同极化平面中的频率分量之间的光学频率分割来导出基准差拍信号f 2 2。 在测量和参考传感器输出之间产生进一步的跳动信号f 3 3，这样的拍频信号用于导出一个或多个参数的测量。
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公开(公告)号：US06680472B1
公开(公告)日：2004-01-20
申请号：US10070735
申请日：2002-03-12
IPC分类号： G01J508
CPC分类号： G01J9/00
摘要： Fibre optic apparatus for accurate and repeatable measurements of light comprising one or more wavelength ranges, and system employing the apparatus. The apparatus according to the invention comprises: a directional coupler adapted to lead the light into an optical fibre, said optical fibre containing at least one analysis filter for each wavelength range, said analysis filters consisting of at least one fibre-optical Bragg-grating (FBG) which reflects incident light with a chosen wavelength back through said directional coupler and onto a detector having an associated signal processing unit, a modulator device for pulsing the incident light with a chosen pulse width, and an optical fibre delay line in front of each analysis filter, with a length adapted to provide for a sufficient time delay larger than the pulse width, so that the pulses reflected from each analysis filter at different wavelengths can be separated in time and thereby be demodulated in the signal processing unit.
摘要翻译： 用于对包括一个或多个波长范围的光进行精确和可重复测量的光纤设备，以及采用该设备的系统。 根据本发明的装置包括：适于将光引入光纤的定向耦合器，所述光纤包含用于每个波长范围的至少一个分析滤波器，所述分析滤波器由至少一个光纤布拉格光栅（ FBG），其将选择的波长的入射光反射回所述定向耦合器并且到具有相关联的信号处理单元的检测器上，用于以选定的脉冲宽度脉冲入射光的调制器装置，以及每个前面的光纤延迟线 分析滤波器，其长度适于提供大于脉冲宽度的足够的时间延迟，使得从不同波长的每个分析滤波器反射的脉冲可以在时间上分离，从而在信号处理单元中被解调。
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公开(公告)号：US5771251A
公开(公告)日：1998-06-23
申请号：US737181
申请日：1997-03-20
CPC分类号： H01S3/0675 , H01S3/0635 , H01S3/1055 , H01S3/1608 , H01S3/1618
摘要： An optical fibre distributed feedback laser comprises an amplifying optical fibre (50) operable to provide optical gain at a lasing wavelength, in which a diffraction grating (30) is disposed on at least a portion of the amplifying optical fibre to provide distributed optical feedback for sustaining lasing action at the lasing wavelength.
摘要翻译： PCT No.PCT / GB95 / 01026 Sec。 371日期1997年3月20日 102（e）1997年3月20日PCT PCT 1995年5月5日PCT公布。 出版物WO95 / 31020 日期：1995年11月16日光纤分布反馈激光器包括可操作以在激光波长下提供光学增益的放大光纤（50），其中衍射光栅（30）设置在放大光纤的至少一部分上， 提供分布式光学反馈，以保持激光波长的激光作用。
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公开(公告)号：US20120069703A1
公开(公告)日：2012-03-22
申请号：US13302026
申请日：2011-11-22
申请人： Arne Berg , Jon Thomas Kringlebotn
发明人： Arne Berg , Jon Thomas Kringlebotn
CPC分类号： G01V13/00 , G01P15/093 , G01V1/201 , Y10T29/49826
摘要： 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.
摘要翻译： 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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