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公开(公告)号：US07729566B2
公开(公告)日：2010-06-01
申请号：US11782475
申请日：2007-07-24
IPC分类号： G02B6/00
CPC分类号： G01J3/36 , G01J3/02 , G01J3/0202 , G01J3/0208 , G01J3/0218 , G01J3/0237 , G01J3/024 , G01J3/0289 , G01J3/0297 , G01J3/108 , G01J3/1809 , G01J5/601 , G01J2003/104 , G01J2003/423 , G01N21/359 , G01N21/39 , G01N2021/399 , G02B6/14
摘要： A method of sensing a process utilizing a sensing apparatus consisting of more than one diode laser having select lasing frequencies, a multiplexer optically coupled to the outputs of the diode lasers with the multiplexer being further optically coupled to a pitch side optical fiber. Multiplexed laser light is transmitted through the pitch side optical fiber to a pitch optic operatively associated with a process chamber which may be a combustion chamber or the boiler of a coal or gas fired power plant. The pitch optic is oriented to project multiplexed laser output through the process chamber. Also operatively oriented with the process chamber is a catch optic in optical communication with the pitch optic to receive the multiplexed laser output projected through the process chamber. The catch optic is optically coupled to an optical fiber which transmits the multiplexed laser output to a demultiplexer. The demultiplexer demultiplexes the laser light and optically couples the select lasing frequencies of light to a detector with the detector being sensitive to one of the select lasing frequencies.
摘要翻译： 一种使用由多于一个具有选择的激光频率的二极管激光器组成的感测装置来感测处理的方法，多路复用器光学耦合到二极管激光器的输出端，多路复用器进一步光耦合到俯仰侧光纤。 多路复用激光通过俯仰侧光纤传输到与可以是燃烧室或煤或燃气发电厂的锅炉的处理室可操作地连接的俯仰光学器件。 俯仰光学器件定向成投影通过处理室的多路复用激光输出。 还与操作室一起操作地定向的是与俯仰光学器件光学通信的接收光学器件，以接收通过处理室投射的多路复用的激光输出。 捕捉光学器件光耦合到将多路复用的激光输出传输到解复用器的光纤。 解复用器解复用激光并将选择的激光频率光耦合到检测器，检测器对选择的激光频率之一敏感。
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公开(公告)号：US20120140234A1
公开(公告)日：2012-06-07
申请号：US13389902
申请日：2010-08-10
IPC分类号： G01N21/55
CPC分类号： F02C7/00 , F23N5/003 , F23N2025/16 , F23N2041/20 , G01N21/39 , G01N2021/4709 , G01N2201/084 , Y02T50/67
摘要： An apparatus and methods for measuring combustion parameters in the measurement zone of a gas turbine engine. The measurement zone is defined as being between an outer casing and an engine component having a reflecting surface inside the outer casing. The apparatus comprises a laser generating a transmitting beam of light of a select wavelength and a multimode transmitting fiber optically coupled to the laser. A transmitting optic is optically coupled to the multimode optical fiber for transmitting the beam into the measurement zone. The reflecting surface is configured to provide a Lambertian reflection. A receiving optic is positioned to receive the Lambertian reflection. Means are provided in operative association with the multimode transmitting fiber for averaging modal noise induced signal level variation of light propagating within the multimode transmitting fiber.
摘要翻译： 一种用于测量燃气涡轮发动机的测量区域中的燃烧参数的装置和方法。 测量区域被定义为在外壳和在外壳内具有反射表面的发动机部件之间。 该装置包括产生选择波长的发射光束的激光器和与激光器光耦合的多模发送光纤。 传输光学器件光耦合到多模光纤以将光束传输到测量区域中。 反射表面被配置为提供朗伯反射。 接收光学器件被定位成接收朗伯反射。 提供与多模发送光纤操作关联的装置，用于平均在多模发送光纤内传播的光的模态噪声感应信号电平变化。
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公开(公告)号：US07389027B2
公开(公告)日：2008-06-17
申请号：US11782481
申请日：2007-07-24
IPC分类号： G02B6/26
CPC分类号： G01J3/36 , G01J3/02 , G01J3/0202 , G01J3/0208 , G01J3/0218 , G01J3/0237 , G01J3/024 , G01J3/0289 , G01J3/0297 , G01J3/108 , G01J3/1809 , G01J5/601 , G01J2003/104 , G01J2003/423 , G01N21/359 , G01N21/39 , G01N2021/399 , G02B6/14
摘要： A pitch side optical system for use in diode laser spectroscopy consisting of more than one diode laser having select lasing frequencies with each diode laser being coupled to an end of a distinct input optical fiber. The pitch side optical system further consists of a multiplexer optically coupled to the other end of less than all of the input optical fibers with the multiplexer outputting multiplexed laser light to a pitch side optical fiber. The pitch side optical system further consists of a coupler optically coupled to the far end of the pitch side optical fiber and the far end of an unmultiplexed input optical fiber with the coupler combining the multiplexed laser light and the unmultiplexed laser light and outputting the combined light to a transmission optical fiber. Typically, the coupler is located near the combustion process. The pitch side optical system further consists of a pitch optic coupled to the transmission optical fiber. Typically, all optical fibers used in the pitch side optical system are single mode optical fibers.
摘要翻译： 用于二极管激光光谱的俯仰侧光学系统，其由具有选择的激光频率的多于一个的二极管激光器组成，每个二极管激光器耦合到不同的输入光纤的端部。 音调侧光学系统还包括多路复用器，其光耦合到少于所有输入光纤的另一端，多路复用器将多路复用的激光输出到音调侧光纤。 俯仰侧光学系统还包括光耦合到俯仰侧光纤的远端的耦合器和未复用输入光纤的远端，耦合器组合复用的激光和未复用的激光，并输出组合的光 传输光纤。 通常，耦合器位于燃烧过程附近。 俯仰侧光学系统还包括耦合到传输光纤的俯仰光学器件。 通常，在俯仰侧光学系统中使用的所有光纤都是单模光纤。
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公开(公告)号：US08786857B2
公开(公告)日：2014-07-22
申请号：US13389902
申请日：2010-08-10
CPC分类号： F02C7/00 , F23N5/003 , F23N2025/16 , F23N2041/20 , G01N21/39 , G01N2021/4709 , G01N2201/084 , Y02T50/67
摘要： An apparatus and methods for measuring combustion parameters in the measurement zone of a gas turbine engine. The measurement zone is defined as being between an outer casing and an engine component having a reflecting surface inside the outer casing. The apparatus comprises a laser generating a transmitting beam of light of a select wavelength and a multimode transmitting fiber optically coupled to the laser. A transmitting optic is optically coupled to the multimode optical fiber for transmitting the beam into the measurement zone. The reflecting surface is configured to provide a Lambertian reflection. A receiving optic is positioned to receive the Lambertian reflection. Means are provided in operative association with the multimode transmitting fiber for averaging modal noise induced signal level variation of light propagating within the multimode transmitting fiber.
摘要翻译： 一种用于测量燃气涡轮发动机的测量区域中的燃烧参数的装置和方法。 测量区域被定义为在外壳和在外壳内具有反射表面的发动机部件之间。 该装置包括产生选择波长的发射光束的激光器和与激光器光耦合的多模发送光纤。 传输光学器件光耦合到多模光纤以将光束传输到测量区域中。 反射表面被配置为提供朗伯反射。 接收光学器件被定位成接收朗伯反射。 提供与多模发送光纤操作关联的装置，用于平均在多模发送光纤内传播的光的模态噪声感应信号电平变化。
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公开(公告)号：US07469092B2
公开(公告)日：2008-12-23
申请号：US11782492
申请日：2007-07-24
IPC分类号： G02B6/00
CPC分类号： G01J3/36 , G01J3/02 , G01J3/0202 , G01J3/0208 , G01J3/0218 , G01J3/0237 , G01J3/024 , G01J3/0289 , G01J3/0297 , G01J3/108 , G01J3/1809 , G01J5/601 , G01J2003/104 , G01J2003/423 , G01N21/359 , G01N21/39 , G01N2021/399 , G02B6/14
摘要： A diode laser spectroscopy gas sensing apparatus having a diode laser with a select lasing frequency, a pitch optic coupled to the diode laser with the pitch optic being operatively associated with a process chamber and oriented to project laser light along a projection beam through the process chamber. This embodiment additionally includes a catch optic in optical communication with the pitch optic to receive the laser light projected through the process chamber and an optical fiber optically coupled to the catch optic. In addition, the catch optic is operatively associated with a catch side alignment mechanism which provides for the alignment of the catch optic with respect to the projection beam to increase a quantity of laser light received by the catch optic from the pitch optic and coupled to the optical fiber and a detector sensitive to the select lasing frequency optically coupled to the optical fiber. The catch side alignment mechanism may consist of means to tilt the catch optic along a first axis and a second axis orthogonal to the first axis with both the first and second axes being approximately orthogonal to the projection beam.
摘要翻译： 一种具有选择激光频率的二极管激光器的二极管激光光谱气体感测装置，耦合到二极管激光器的俯仰光学器件，其中俯仰光学器件与处理室可操作地相关联并且被定向成沿着投影束将激光投射通过处理室 。 该实施例另外包括与俯仰光学器件光学通信的接收光学器件，以接收通过处理室投射的激光，以及光学耦合到捕捉光学器件的光纤。 另外，捕捉光学元件与捕捉侧对准机构可操作地相关联，该机构提供捕获光学元件相对于投影光束的对准，以增加由光阑从俯仰光学元件接收的激光的数量并耦合到 光纤和对光纤耦合的选择激光频率敏感的检测器。 捕获侧对准机构可以包括用于使捕获光学器件沿第一轴线和与第一轴线正交的第二轴线倾斜的装置，其中第一和第二轴线几乎与投影光束正交。
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6.发明申请TIME-SYNCHRONIZED TDLAS MEASUREMENTS OF PRESSURE AND TEMPERATURE IN A GAS TURBINE ENGINE 有权气体涡轮发动机压力和温度的时间同步TDLAS测量公开(公告)号：US20130057864A1
公开(公告)日：2013-03-07
申请号：US13696630
申请日：2011-05-10
申请人： Henrik Hofvander , Bernard P. Masterson , Andrew D. Sappey , James Howell , David Owenby , Lee Sutherland , Michael J Estes
发明人： Henrik Hofvander , Bernard P. Masterson , Andrew D. Sappey , James Howell , David Owenby , Lee Sutherland , Michael J Estes
IPC分类号： G01J3/42
CPC分类号： G01J5/0014 , G01J3/4338 , G01J5/601 , G01J2001/4242 , G01L23/16 , G01N21/39 , G01N2021/399
摘要： A method of absorption spectroscopy to determine a rapidly variable gas parameter. The method includes transmitting light from a synchronization light source to a synchronization detector. The transmitted light is periodically interrupted by a moving mechanical part between the synchronization light source and synchronization detector. The output from the synchronization detector is used to generate a repeating time signal having variable phase delay. This signal is used to control the timing of laser spectroscopy wavelength scans. Multiple spectroscopic scans may be repeated at multiple selected time signal phase delay and the results averaged for each phase. Apparatus for implementing the above methods are also disclosed.
摘要翻译： 用于确定快速变化的气体参数的吸收光谱法的方法。 该方法包括将光从同步光源传输到同步检测器。 透射光被同步光源和同步检测器之间的移动机械部分周期性地中断。 来自同步检测器的输出用于产生具有可变相位延迟的重复时间信号。 该信号用于控制激光光谱波长扫描的时序。 可以在多个选定的时间信号相位延迟下重复多个光谱扫描，并且每个相位的平均结果。 还公开了用于实现上述方法的装置。
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公开(公告)号：US07248755B2
公开(公告)日：2007-07-24
申请号：US10543288
申请日：2004-03-31
IPC分类号： G02B6/00
CPC分类号： G01J3/36 , G01J3/02 , G01J3/0202 , G01J3/0208 , G01J3/0218 , G01J3/0237 , G01J3/024 , G01J3/0289 , G01J3/0297 , G01J3/108 , G01J3/1809 , G01J5/601 , G01J2003/104 , G01J2003/423 , G01N21/359 , G01N21/39 , G01N2021/399 , G02B6/14
摘要： A sensing apparatus consisting of more than one diode laser having select lasing frequencies, a multiplexer optically coupled to the outputs of the diode lasers with the multiplexer being further optically coupled to a pitch side optical fiber. Multiplexed laser light is transmitted through the pitch side optical fiber to a pitch optic operatively associated with a process chamber which may be a combustion chamber or the boiler of a coal or gas fired power plant. The pitch optic is oriented to project multiplexed laser output through the process chamber. Also operatively oriented with the process chamber is a catch optic in optical communication with the pitch optic to receive the multiplexed laser output projected through the process chamber. The catch optic is optically coupled to an optical fiber which transmits the multiplexed laser output to a demultiplexer. The demultiplexer demultiplexes the laser light and optically couples the select lasing frequencies of light to a detector with the detector being sensitive to one of the select lasing frequencies.
摘要翻译： 由多于一个具有选择的激光频率的二极管激光器组成的感测装置，多路复用器光学耦合到二极管激光器的输出端，多路复用器进一步光耦合到俯仰侧光纤。 多路复用激光通过俯仰侧光纤传输到与可以是燃烧室或煤或燃气发电厂的锅炉的处理室可操作地连接的俯仰光学器件。 俯仰光学器件定向成投影通过处理室的多路复用激光输出。 还与操作室一起操作地定向的是与俯仰光学器件光学通信的接收光学器件，以接收通过处理室投射的多路复用的激光输出。 捕捉光学器件光耦合到将多路复用的激光输出传输到解复用器的光纤。 解复用器解复用激光并将选择的激光频率光耦合到检测器，检测器对选择的激光频率之一敏感。
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8.发明申请Binning and Tomography for High Spatial Resolution Temperature and Species Concentration Measurements 有权用于高空间分辨率温度和物种浓度测量的分层和断层扫描公开(公告)号：US20100241361A1
公开(公告)日：2010-09-23
申请号：US12600034
申请日：2008-05-23
CPC分类号： G01N21/3504 , G01K11/125 , G01N21/39 , G01N2021/1787 , G01N2021/3513
摘要： A method of absorption spectroscopy including obtaining absorption data at multiple wavelengths along more than one line-of-sight path through a quantity of gas of interest. The method further includes identifying more than one temperature and gas species concentration bin along the multiple line-of-sight paths and creating a map of temperature and gas species concentration. The map thus created will have at least two-dimensional information derived from select temperature and gas species concentration bins identified along more than one line-of-sight path. Apparatus for implementing the above method is also disclosed.
摘要翻译： 一种吸收光谱学方法，包括通过一定数量的感兴趣的气体沿着多于一条视线路径获得多个波长的吸收数据。 该方法还包括沿着多条视线路径识别多于一个的温度和气体种类浓度仓，并创建温度和气体种类浓度的图。 由此创建的地图将具有至少二维信息，该二维信息源自沿多于一条视线路径识别的选定温度和气体种类浓度箱。 还公开了用于实现上述方法的装置。
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9.发明授权Time-synchronized TDLAS measurements of pressure and temperature in a gas turbine engine 有权燃气轮机中压力和温度的时间同步TDLAS测量公开(公告)号：US08699011B2
公开(公告)日：2014-04-15
申请号：US13696630
申请日：2011-05-10
申请人： Henrik Hofvander , Bernard P Masterson , Andrew D Sappey , James Howell , David Owenby , Lee Sutherland , Michael J Estes
发明人： Henrik Hofvander , Bernard P Masterson , Andrew D Sappey , James Howell , David Owenby , Lee Sutherland , Michael J Estes
CPC分类号： G01J5/0014 , G01J3/4338 , G01J5/601 , G01J2001/4242 , G01L23/16 , G01N21/39 , G01N2021/399
摘要： A method of absorption spectroscopy to determine a rapidly variable gas parameter. The method includes transmitting light from a synchronization light source to a synchronization detector. The transmitted light is periodically interrupted by a moving mechanical part between the synchronization light source and synchronization detector. The output from the synchronization detector is used to generate a repeating time signal having variable phase delay. This signal is used to control the timing of laser spectroscopy wavelength scans. Multiple spectroscopic scans may be repeated at multiple selected time signal phase delay and the results averaged for each phase. Apparatus for implementing the above methods are also disclosed.
摘要翻译： 用于确定快速变化的气体参数的吸收光谱法的方法。 该方法包括将光从同步光源传输到同步检测器。 透射光被同步光源和同步检测器之间的移动机械部分周期性地中断。 来自同步检测器的输出用于产生具有可变相位延迟的重复时间信号。 该信号用于控制激光光谱波长扫描的时序。 可以在多个选定的时间信号相位延迟下重复多个光谱扫描，并且每个相位的平均结果。 还公开了用于实现上述方法的装置。
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10.发明授权Binning and tomography for high spatial resolution temperature and species concentration measurements 有权用于高空间分辨率温度和物种浓度测量的分级和断层摄影公开(公告)号：US08255169B2
公开(公告)日：2012-08-28
申请号：US12600034
申请日：2008-05-23
CPC分类号： G01N21/3504 , G01K11/125 , G01N21/39 , G01N2021/1787 , G01N2021/3513
摘要： A method of absorption spectroscopy including obtaining absorption data at multiple wavelengths along more than one line-of-sight path through a quantity of gas of interest. The method further includes identifying more than one temperature and gas species concentration bin along the multiple line-of-sight paths and creating a map of temperature and gas species concentration. The map thus created will have at least two-dimensional information derived from select temperature and gas species concentration bins identified along more than one line-of-sight path. Apparatus for implementing the above method is also disclosed.
摘要翻译： 一种吸收光谱学方法，包括通过一定数量的感兴趣的气体沿着多于一条视线路径获得多个波长的吸收数据。 该方法还包括沿着多条视线路径识别多于一个的温度和气体种类浓度仓，并创建温度和气体种类浓度的图。 由此创建的地图将具有至少二维信息，该二维信息源自沿多于一条视线路径识别的选定温度和气体种类浓度箱。 还公开了用于实现上述方法的装置。
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