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1. 发明申请

WO2004025324A1 COHERENT DIFFERENTIAL ABSORPTION LIDAR (DIAL) 审中-公开
标题翻译：相同的差分吸收激光（DIAL）
公开(公告)号：WO2004025324A1
公开(公告)日：2004-03-25
申请号：PCT/GB2003/003882
申请日：2003-09-08
申请人： QINETIQ LIMITED , BRYCE, David, John , HARRIS, Michael , PEARSON, Guy, Neville , WILLETTS, David, Vedmore
发明人： BRYCE, David, John , HARRIS, Michael , PEARSON, Guy, Neville , WILLETTS, David, Vedmore
IPC分类号： G01S17/88
CPC分类号： G01S7/4818 , G01N21/314 , G01N21/3504 , G01S7/487 , G01S7/497 , G01S17/87 , G01S17/88
摘要： A coherent differential absorption lidar (DIAL) device (2) comprises a transmit portion (4) for directing a combined light beam to a remote target and a receive portion (5) for receiving light returned from the remote target and for coherently mixing the received light with its associated local oscillator beam. The combined beam comprises at least two component light beams of discrete wavelengths. The device further comprises a signal correction means. The signal correction means comprising a means for extracting a portion of each component light beam from the transmit portion, a means for introducing a frequency difference (62) between each extracted component light beam and its associated local oscillator beam and a means for directing the extracted beam into the receive portion. This provides an additional correction signal thereby improving device performance.
摘要翻译：相干差分吸收激光雷达（DIAL）装置（2）包括用于将组合的光束引导到远程目标的发射部分（4）和用于接收从远程目标物返回的光并用于相干混合所接收的光的接收部分（5）光与其相关的本地振荡器光束。组合光束包括离散波长的至少两个分量光束。该装置还包括信号校正装置。信号校正装置包括用于从发送部分提取每个分量光束的一部分的装置，用于在每个提取的分量光束与其相关联的本地振荡器波束之间引入频差（62）的装置和用于引导射入接收部分。这提供了附加的校正信号，从而提高了设备性能。

2. 发明申请

WO2007017641A1 APPARATUS AND METHOD FOR FOCUSSING AN OPTICAL BEAM 审中-公开
标题翻译：聚焦光束的装置和方法
公开(公告)号：WO2007017641A1
公开(公告)日：2007-02-15
申请号：PCT/GB2006/002903
申请日：2006-08-04
申请人： QINETIQ LIMITED , HARRIS, Michael , WILLETTS, David, Vedmore
发明人： HARRIS, Michael , WILLETTS, David, Vedmore
IPC分类号： G01P5/26 , G01S17/95 , G01S17/58
CPC分类号： G01S17/95 , G01P5/26 , G01S7/4811 , G01S17/58 , Y02A90/19
摘要： Apparatus (62) is described for focussing an optical beam. The apparatus includes an optical transmission component, such as a waveguide (56) having a first end (54), a first lens (58) for focussing light from the optical transmission component (56) to a remote probe volume (60) and focus adjustment means (66) for setting the range (R) of said remote probe volume (60) from the apparatus (62). The first lens (58) is spaced apart from the first end (54) of the optical waveguide (56) and the focus adjustment means (66) comprises one or more optical elements (70) and means for removably inserting any of said one or more optical elements (70) into the free-space optical path between the first end (54) of the optical waveguide (56) and the first lens (58). In this manner, the focus or range (R) of the device may be set as required. A laser radar (lidar) device for wind speed measurements that incorporates the focussing apparatus (62) is also described.
摘要翻译：描述了用于聚焦光束的装置（62）。该装置包括光传输部件，例如具有第一端（54）的波导（56），用于将来自光传输部件（56）的光聚焦到远程探针体积（60）的第一透镜（58）和聚焦用于从所述设备（62）设置所述远程探测器体积（60）的范围（R）的调节装置（66）。第一透镜（58）与光波导（56）的第一端（54）间隔开，并且焦点调节装置（66）包括一个或多个光学元件（70）和用于可移除地插入任何一个或更多的光学元件（70）进入光波导（56）的第一端（54）和第一透镜（58）之间的自由空间光路中。以这种方式，可以根据需要设定装置的焦点或范围（R）。还描述了包括聚焦装置（62）的用于风速测量的激光雷达（激光雷达）装置。

3. 发明申请

WO2004053518A1 LASER RADAR APPARATUS HAVING MULTIPLE OUTPUT WAVELENGHTS 审中-公开
标题翻译：具有多个输出波长的激光雷达设备
公开(公告)号：WO2004053518A1
公开(公告)日：2004-06-24
申请号：PCT/GB2003/005215
申请日：2003-12-03
申请人： QINETIQ LIMITED , HARRIS, Michael , BRYCE, David, John , PEARSON, Guy, Neville , WILLETTS, David, Vedmore
发明人： HARRIS, Michael , BRYCE, David, John , PEARSON, Guy, Neville , WILLETTS, David, Vedmore
IPC分类号： G01S7/491
CPC分类号： G01N21/39 , G01J3/42 , G01N21/3504 , G01N2021/1793 , G01N2021/3513 , G01N2021/394 , G01N2021/395 , G01N2021/399
摘要： A coherent laser radar (lidar) device is described. The device has a transmitter portion that comprises a single wavelength laser source, a conversion means (such as an electro-optic modulator) for producing a combined light beam that comprises at least two component light beams of discrete wavelength from the output of said single wavelength laser source, and transmit optics to direct the combined light beam to a remote target. Each component light beam of the combined light beam traverses the same optical path from the single wavelength laser source to the transmit optics. The device is used to make differential absorption measurements.
摘要翻译：描述了相干激光雷达（激光雷达）装置。该装置具有包括单个波长激光源的发射器部分，用于产生组合光束的转换装置（例如电光调制器），该组合光束包括从所述单个波长的输出的离散波长的至少两个分量光束激光源和发射光学器件以将组合的光束引导到远程目标。组合光束的每个分量光束穿过从单个波长激光源到发射光学器件的相同光路。该装置用于进行差分吸收测量。

4. 发明申请

WO2004034084A1 BISTATIC LASER RADAR APPARATUS 审中-公开
标题翻译： BISTATIC激光雷达设备
公开(公告)号：WO2004034084A1
公开(公告)日：2004-04-22
申请号：PCT/GB2003/004408
申请日：2003-10-09
申请人： QINETIQ LIMITED , HARRIS, Michael , HILL, Christopher , LEWIN, Andrew, Charles
发明人： HARRIS, Michael , HILL, Christopher , LEWIN, Andrew, Charles
IPC分类号： G01S17/46
CPC分类号： G01S7/4818 , G01S7/4811 , G01S7/497 , G01S17/003 , G01S17/58
摘要： A bistatic laser radar (lidar) device is described that comprises a transmit channel (60) for forming a focused transmit beam, and a receive channel (62) for forming a focused receive beam. The device is arranged such that the focus of the transmit beam and the focus of the receive beam fall on a common axis when focused to a distance within the operable distance range of the device. The device may be used for vibrometry, wind speed measurements and the like. Implementation of such a device using optical fibre based components is described.
摘要翻译：描述了一种双基地激光雷达（激光雷达）装置，其包括用于形成聚焦发射光束的发射通道（60）和用于形成聚焦接收光束的接收通道（62）。该装置被布置成使得当被聚焦到设备的可操作距离范围内的距离时，发射波束的焦点和接收波束的焦点落在公共轴上。该装置可以用于振动测量，风速测量等。描述使用基于光纤的部件的这种装置的实现。

5. 发明申请

WO2004077068A1 WIND TURBINE CONTROL HAVING A LIDAR WIND SPEED MEASUREMENT APPARATUS 审中-公开
标题翻译：具有雷达风速测量装置的风力涡轮机控制
公开(公告)号：WO2004077068A1
公开(公告)日：2004-09-10
申请号：PCT/GB2004/000841
申请日：2004-02-26
申请人： QINETIQ LIMITED , SMITH, David, Arthur , HARRIS, Michael
发明人： SMITH, David, Arthur , HARRIS, Michael
IPC分类号： G01P5/00
CPC分类号： F03D7/042 , F03D7/0224 , F03D7/024 , F05B2270/32 , F05B2270/322 , F05B2270/8042 , G01P5/26 , G01S17/87 , G01S17/88 , G01S17/95 , Y02A90/19 , Y02E10/721 , Y02E10/723
摘要： A wind turbine is provided having a lidar wind speed measurement apparatus (10, 16, 18) for achieving wind control. The lidar apparatus is arranged to scan the area (30) in front of the wind turbine so as to generate a measurement of the wind speed across the wind field. The lidar apparatus may be located in the hub (6) of the wind turbine and the look direction (32a, 32b, 32c) inclined away from the rotational axis so that rotation of the hub (6) ensures scanning. Preferably the lidar apparatus has a plurality of look directions (32a, 32b, 32c) so as to increase the scanning rate. This may be achieved by having a number of dedicated lidar systems and/or by using multiplexed lidars. Measurement of the wind field allows improved control of the wind turbine giving efficiency and reduced wear benefits.
摘要翻译：提供了具有用于实现风力控制的激光雷达风速测量装置（10,16,18）的风力涡轮机。激光雷达装置被布置成扫描风力涡轮机前面的区域（30），以便产生跨越风场的风速的测量。激光雷达装置可以位于风力涡轮机的轮毂（6）中，并且远离旋转轴线的观察方向（32a，32b，32c）倾斜，使得轮毂（6）的旋转确保扫描。优选地，激光雷达装置具有多个外观方向（32a，32b，32c），以增加扫描速率。这可以通过使用多个专用的激光雷达系统和/或通过使用复用的雷达雷达来实现。风场的测量可以改善对风力发电机的控制，从而提高效率并减少磨损。

6. 发明申请

WO2005008284A1 WIND SPEED MEASUREMENT APPARATUS AND METHOD 审中-公开
标题翻译：风速测量装置和方法
公开(公告)号：WO2005008284A1
公开(公告)日：2005-01-27
申请号：PCT/GB2004/002988
申请日：2004-07-09
申请人： QINETIQ LIMITED , SMITH, David, Arthur , HARRIS, Michael
发明人： SMITH, David, Arthur , HARRIS, Michael
IPC分类号： G01S17/95
CPC分类号： G01S17/95 , G01S17/003 , G01S17/023 , G01S17/58 , Y02A90/19
摘要： A buoyant platform apparatus (36), such as a buoy, is described that comprises a laser radar (lidar) wind speed measurement (20) device. The lidar (22) is arranged to make wind velocity measurements at one or more remote probe volumes of known position relative to said platform (36). The wind speed measurement apparatus may further comprise motion sensing means (26) that, in use, monitor motion of the platform (36) allowing wind speed at an absolute position in space to be measured. Wind velocity data may also be compensated for platform movement.
摘要翻译：描述了诸如浮标的浮力平台装置（36），其包括激光雷达（激光雷达）风速测量（20）装置。激光雷达（22）布置成使得相对于所述平台（36）的已知位置的一个或多个远程探测器体积进行风速测量。风速测量装置还可以包括运动检测装置（26），其在使用中监视平台（36）的运动，允许测量空间中的绝对位置的风速。风速数据也可以补偿平台运动。

7. 发明申请

WO2010020755A2 LIDAR MEAN POWER REDUCTION 审中-公开
标题翻译：激光平均功率降低
公开(公告)号：WO2010020755A2
公开(公告)日：2010-02-25
申请号：PCT/GB2009/001975
申请日：2009-08-12
申请人： QINETIQ LIMITED , HARRIS, Michael , STONE, Steven, Matthew , LEWIN, Andrew, Charles
发明人： HARRIS, Michael , STONE, Steven, Matthew , LEWIN, Andrew, Charles
IPC分类号： G01S17/95 , G01S7/481
CPC分类号： G01S17/95 , G01S7/4814 , Y02A90/19
摘要： A laser radar device adapted to ensure that the output from the laser is eye-safe. A means for applying spatial dither to the output of the laser source, such as a moveable optical arrangement. This causes the point of focus of the transmitted beam to traverse a target area by small amounts, reducing the overall radiation exposure at any particular point of focus, but having negligible impact on wind speed measurement for example. Alternative arrangements for ensuring eye-safety include periodically reducing the laser power density, gating the output or altering the focussing of the transmitted beam.
摘要翻译：
一种激光雷达装置，用于确保激光器的输出是人眼安全的。用于将空间抖动应用于激光源的输出的装置，例如可移动的光学装置。这导致透射光束的焦点少量地穿过目标区域，减少了任何特定焦点处的整体辐射曝光，但是例如对风速测量的影响可以忽略不计。确保人眼安全的替代方案包括周期性地降低激光功率密度，选通输出或改变透射光束的聚焦。

8. 发明申请

WO2007012878A1 LASER MEASUREMENT DEVICE AND METHOD 审中-公开
标题翻译：激光测量装置和方法
公开(公告)号：WO2007012878A1
公开(公告)日：2007-02-01
申请号：PCT/GB2006/002847
申请日：2006-07-28
申请人： QINETIQ LIMITED , HARRIS, Michael , JOHNSON, Martin , SCULLION, Richard, Paul
发明人： HARRIS, Michael , JOHNSON, Martin , SCULLION, Richard, Paul
IPC分类号： G01S17/95
CPC分类号： G01S17/95 , G01S2007/4975 , G01S2007/4977 , Y02A90/19
摘要： A measurement device, such as a laser radar (66), is described that comprises a transmitter portion for transmitting radiation to a remote probe volume, a receiver portion for detecting radiation returned from the remote probe volume and a processor for analysing the detected return radiation. The device is suitable for transmitting and receiving radiation through a window portion (54) having associated window cleaning apparatus (e.g. wiper 62) for cleaning said window portion (54) in response to a cleaning activation signal. The processor is arranged to generate a cleaning activation signal for activating window cleaning apparatus when the properties of said detected return radiation are indicative of a reduction in transmission through at least part of said window portion. In one embodiment, a conically scanned lidar (66) is described that generates a cleaning activation signal when the power of detected return radiation varies as a function of the angle of transmission of radiation from the device. Corresponding methods and a weatherproof laser device (50) are also described.
摘要翻译：描述了诸如激光雷达（66）的测量装置，其包括用于将辐射传输到远程探针体积的发射器部分，用于检测从远程探针体积返回的辐射的接收器部分和用于分析检测到的返回辐射的处理器。该装置适于通过具有相关联的窗户清洁装置（例如刮水器62）的窗口部分（54）来发射和接收辐射，用于响应于清洁激活信号清洁所述窗口部分（54）。当所述检测到的返回辐射的特性表示通过所述窗口部分的至少一部分的透射率减小时，处理器被布置成产生用于启动窗户清洁设备的清洁激活信号。在一个实施例中，描述了锥形扫描的激光雷达（66），当检测到的返回辐射的功率随着来自设备的辐射的透射角度而变化时，产生清洁激活信号。还描述了相应的方法和防风雨激光装置（50）。

9. 发明申请

WO2005114253A1 LASER RADAR DEVICE AND METHOD 审中-公开
标题翻译：激光雷达设备和方法
公开(公告)号：WO2005114253A1
公开(公告)日：2005-12-01
申请号：PCT/GB2005/001943
申请日：2005-05-18
申请人： QINETIQ LIMITED , HARRIS, Michael , SMITH, David, Arthur , COFFEY, Adrian, Sean
发明人： HARRIS, Michael , SMITH, David, Arthur , COFFEY, Adrian, Sean
IPC分类号： G01S17/95
CPC分类号： G01S17/95 , G01S7/493 , Y02A90/19
摘要： A coherent laser radar or lidar device (2; 20; 84; 90) for measuring wind speed is described that comprises a transmitter for transmitting a beam of light to a remote probe volume (6; 54), a receiver for detecting back-scattered light and an analyser for calculating wind velocity at the remote probe volume from the Doppler shift in frequency of the detected back-scattered light. The analyser is arranged to monitor for the presence of, and/or to ensure the calculated wind speed is corrected for, any Doppler frequency components of the detected back-scattered light that arise from back-scatter off cloud located at a range greater than the range of the remote probe volume. It is described how the lidar (2; 20; 84; 90) may be scanned and wind velocity components calculated by fitting the scanned line of sight velocity values to a predetermined function. Furthermore, it is outlined how an initial fit may be performed to determine which points are to be used in this calculation. The incorporation of a back scatter profiling means, such as ceilometer (82), is also described. A wind turbine (902) incorporating such a device (90) is also described.
摘要翻译：描述了用于测量风速的相干激光雷达或激光雷达装置（2; 20; 84; 90），其包括用于将光束传输到远程探针体积（6; 54）的发射器，用于检测反向散射的接收器光和分析器，用于根据检测到的反向散射光的频率的多普勒频移来计算遥测探头音量的风速。该分析器被设置为监测所检测的反向散射光的多普勒频率分量的存在和/或确保计算出的风速，所述多普勒频率分量由位于大于远程探头音量范围。描述了如何扫描激光雷达（2; 20; 84; 90），并通过将扫描的视线速度值拟合为预定函数来计算风速分量。此外，概述了如何执行初始拟合以确定在该计算中要使用哪些点。还描述了并入背散射廓线装置，例如光圈仪（82）。还描述了并入这种装置（90）的风力涡轮机（902）。

10. 发明申请

WO2003048804A1 COHERENT LASER RADAR APPARATUS 审中-公开
标题翻译：相干激光雷达设备
公开(公告)号：WO2003048804A1
公开(公告)日：2003-06-12
申请号：PCT/GB2002/005279
申请日：2002-11-25
申请人： QINETIQ LIMITED , HARRIS, Michael
发明人： HARRIS, Michael
IPC分类号： G01S17/58
CPC分类号： G01P5/26 , G01S7/4818 , G01S17/58 , G01S17/95 , Y02A90/19
摘要： A coherent laser radar device is described which comprises a laser source (11), and two or more transceivers (84). The two or more transceivers are optically connected to the laser source by optical fibre cables (42, 48, 82) that are routed through an optical routing means (80). A detection means (27) is also provided, and radiation received by the two or more transceivers (84) can also be optically coupled to the detection means (27) by optical fibre cables (82, 86, 90). The device allows multiple transceivers (84) to be located away from central unit (64) of the device. This proves advantageous in many applications; for example for aircraft wind speed measurements or wind gust measurements on wind farms.
摘要翻译：描述了一种相干激光雷达装置，其包括激光源（11）和两个或更多个收发器（84）。两个或多个收发器通过光纤布线装置（80）路由的光纤电缆（42,48,82）与激光源光学连接。还提供了检测装置（27），并且由两个或多个收发器（84）接收的辐射也可以通过光纤电缆（82,86,90）与检测装置（27）光耦合。该设备允许多个收发器（84）远离设备的中央单元（64）。这在许多应用中证明是有利的; 例如用于飞机风速测量或风力发电场的风阵测量。

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