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1. 发明申请

WO2015165924A1 INTERFEROMETRIC OPTICAL FIBRE SENSOR SYSTEM AND METHOD OF INTERROGATION 审中-公开
标题翻译：介质光纤传感器系统及其互连方法
公开(公告)号：WO2015165924A1
公开(公告)日：2015-11-05
申请号：PCT/EP2015/059257
申请日：2015-04-28
申请人： OPTOPLAN AS
发明人： RØNNEKLEIV, Erlend , WAAGAARD, Ole Henrik
IPC分类号： G01D5/26
CPC分类号： G01D5/266 , G01B9/02 , G01B2290/70 , G01D5/268
摘要： The invention relates to a method of interrogating an interferometric optical fibre sensor system. The system comprises a laser source for generating interrogation light and an sensor array with at least a first and a second reflector and with a sensor delay being a difference in propagation time for light being reflected from the first and second reflector, respectively. The method comprises continuously and repeatedly frequency sweeping the interrogation light from the laser source within a sweep bandwidth, SBW , over a sweep duration, t sw , with a substantially constant sweep rate r = SBW / t sw , to produce a swept interrogation light signal. The swept interrogation light signal is launched into the sensor array. The method further comprising detecting reflected signals being returned from the sensor array by each of the reflectors, respectively, wherein detection comprises mixing a return light signal from the array with a local oscillator, LO, signal onto an optical receiver to produce an electrical radio frequency signal. The electrical radio frequency signal is then demultiplexed into a first and second signal channel, corresponding to the first and second reflector, respectively. Each of the first and second signal channel are demodulated into a first phase response from the first reflector and a second phase response from the second reflector. Finally, the method comprises subtracting the first phase response from the second phase response to obtain a sensor phase signal. The invention further relates to an interferometric optical fibre sensor system.
摘要翻译：本发明涉及一种询问干涉光纤传感器系统的方法。该系统包括用于产生询问光的激光源和至少具有第一和第二反射器的传感器阵列，并且传感器延迟分别是从第一和第二反射器反射的光的传播时间差。该方法包括以扫描持续时间t sw，以扫描频率r = SBW / t sw为基础，在扫描带宽（SBW）内连续重复频率扫描来自激光源的询问光，以产生扫描询问光信号。扫描的询问光信号被发射到传感器阵列中。该方法还包括分别检测由每个反射器从传感器阵列返回的反射信号，其中检测包括将来自阵列的返回光信号与本地振荡器LO信号混合到光接收器上以产生电射频信号。然后，电射频信号分别对应于第一和第二反射器被解复用为第一和第二信号通道。第一和第二信号通道中的每一个被解调成来自第一反射器的第一相位响应和来自第二反射器的第二相位响应。最后，该方法包括从第二相位响应减去第一相位响应以获得传感器相位信号。本发明还涉及一种干涉光纤传感器系统。

2. 发明申请

WO2003003079A1 APPARATUS AND METHOD FOR PRODUCING FIBRE BRAGG GRATINGS IN A WAVEGUIDE 审中-公开
标题翻译：用于在波形管中生产光纤布拉格光栅的装置和方法
公开(公告)号：WO2003003079A1
公开(公告)日：2003-01-09
申请号：PCT/NO2002/000238
申请日：2002-06-28
申请人： OPTOPLAN AS , RØNNEKLEIV, Erlend
发明人： RØNNEKLEIV, Erlend
IPC分类号： G02B5/18
CPC分类号： G02B6/02152 , G02B6/02133
摘要： An optical waveguide Bragg grating fabrication apparatus comprises a light source providing ultra-violet(UV) light and optical means for adapting the light beam to form an interference pattern in a photosensitive optical waveguide. The interference pattern has a spatial intensity modulation along the length of the optical waveguide and thus providing an optical grating in the waveguide in the form of a refractive index modulation. The optical means comprises a movable non-uniform diffractive mask for dividing the optical beam in at least two beams and optical elements for collecting two or more of the light beams to interfere on the optical waveguide. The optical means comprises position control means for controlling the position of at least one mirror or lens. Corresponding methods and the use of a super-periodic diffractive mask in such fabrication are described.
摘要翻译：光波导布拉格光栅制造装置包括提供紫外光（UV）光的光源和用于使光束适配在光敏光波导中形成干涉图案的光学装置。干涉图案沿着光波导的长度具有空间强度调制，并且因此以折射率调制的形式在波导中提供光栅。光学装置包括用于将光束分成至少两个光束的可移动的非均匀衍射掩模和用于收集两个或更多个光束以干涉光波导的光学元件。光学装置包括用于控制至少一个反射镜或透镜的位置的位置控制装置。描述了在这种制造中相应的方法和超周期衍射掩模的使用。

3. 发明公开

EP3137853A1 INTERFEROMETRIC OPTICAL FIBRE SENSOR SYSTEM AND METHOD OF INTERROGATION 有权
标题翻译：干扰素FEREROPTISCHES SENSORSYSTEM UND VERFAHREN ZUR ABFRAGE
公开(公告)号：EP3137853A1
公开(公告)日：2017-03-08
申请号：EP15720319.1
申请日：2015-04-28
申请人： Optoplan AS
发明人： RØNNEKLEIV, Erlend , WAAGAARD, Ole Henrik
IPC分类号： G01D5/26
CPC分类号： G01D5/266 , G01B9/02 , G01B2290/70 , G01D5/268
摘要： 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.
摘要翻译：本发明涉及一种询问干涉光纤传感器系统的方法。该系统包括用于产生询问光的激光源和至少具有第一和第二反射器的传感器阵列，并且传感器延迟分别是从第一和第二反射器反射的光的传播时间差。该方法包括以扫描持续时间t sw扫描在扫描带宽（SBW）内扫描来自激光源的询问光，扫描速率基本恒定，扫描速率r = SBW / t sw，以产生扫描询问光信号。扫描的询问光信号被发射到传感器阵列中。该方法还包括分别检测由每个反射器从传感器阵列返回的反射信号，其中检测包括将来自阵列的返回光信号与本地振荡器LO信号混合到光接收器上以产生电射频信号。然后，电射频信号被分离成分别对应于第一和第二反射器的第一和第二信号通道。第一和第二信号通道中的每一个被解调成来自第一反射器的第一相位响应和来自第二反射器的第二相位响应。最后，该方法包括从第二相位响应减去第一相位响应以获得传感器相位信号。本发明还涉及一种干涉光纤传感器系统。

4. 发明授权

EP3137853B1 INTERFEROMETRIC OPTICAL FIBRE SENSOR SYSTEM AND METHOD OF INTERROGATION 有权
公开(公告)号：EP3137853B1
公开(公告)日：2019-08-21
申请号：EP15720319.1
申请日：2015-04-28
申请人： Optoplan AS
发明人： RØNNEKLEIV, Erlend , WAAGAARD, Ole Henrik
IPC分类号： G01D5/26 , G01B9/02

5. 发明授权

EP1332356B1 APPARATUS FOR ACOUSTIC DETECTION OF PARTICLES IN A FLOW USING A FIBRE OPTIC INTERFEROMETER 有权
标题翻译： DEVICE FOR声学检测IN流体中的粒子使用光纤干涉仪
公开(公告)号：EP1332356B1
公开(公告)日：2010-08-04
申请号：EP01961443.7
申请日：2001-08-30
申请人： Optoplan AS
发明人： KRINGLEBOTN, Jon, Thomas , RØNNEKLEIV, Erlend , KNUDSEN, Sverre
IPC分类号： E21B47/10 , E21B47/12 , G01H9/00 , G01N15/02
CPC分类号： G01N15/02 , E21B47/101 , E21B47/123 , G01H9/004 , G01N15/04 , G01N2015/0046

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