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1. 发明申请

US20130050680A1 SYSTEM AND METHODS FOR MAKING TEMPERATURE AND PRESSURE MEASUREMENTS UTILIZING A TUNABLE LASER DIODE 审中-公开
标题翻译：使用可激光二极管制作温度和压力测量的系统和方法
公开(公告)号：US20130050680A1
公开(公告)日：2013-02-28
申请号：US13216439
申请日：2011-08-24
申请人： Vivek Venugopal Badami , Chayan Mitra
发明人： Vivek Venugopal Badami , Chayan Mitra
IPC分类号： G01N21/17 , G01N21/00
CPC分类号： G01L11/02 , G01L19/0092 , G01L23/16
摘要： A system for measuring a dynamic pressure in a gas using a tunable diode laser. The system of this aspect includes a laser transmission system that includes the tunable diode laser and configured to transmit laser light created by the tunable diode laser through the gas and a laser receiving system configured to receive the laser light after it has passed through the gas to create absorption peaks from the received laser light. The laser receiving system is configured to estimate a change in pressure based on an expansion of one of the absorption peaks.
摘要翻译：一种使用可调谐二极管激光器测量气体中的动态压力的系统。该方面的系统包括激光传输系统，其包括可调谐二极管激光器并且被配置为透射通过气体传输由可调谐二极管激光器产生的激光;以及激光接收系统，其被配置为在其通过气体之后接收激光，从接收到的激光产生吸收峰。激光接收系统被配置为基于吸收峰之一的膨胀来估计压力变化。

2. 发明申请

US20120060510A1 HOT GAS TEMPERATURE MEASUREMENT IN GAS TURBINE USING TUNABLE DIODE LASER 有权
标题翻译：使用可旋转二极管激光器在气体涡轮机中进行热气温度测量
公开(公告)号：US20120060510A1
公开(公告)日：2012-03-15
申请号：US12880681
申请日：2010-09-13
申请人： Vivek Venugopal Badami , Scott Mordin Hoyte , Chayan Mitra , Ayan Banerjee
发明人： Vivek Venugopal Badami , Scott Mordin Hoyte , Chayan Mitra , Ayan Banerjee
IPC分类号： F02C7/20 , H01S3/10
CPC分类号： G01K13/02 , G01J3/108 , G01J3/427 , G01K11/12 , G01K2013/024
摘要： A combustion gas measurement apparatus mounted in a gas turbine including: a tunable laser generating a radiation beam passing through a combustion gas path; a controller tuning the laser to emit radiation having at least a first selected wavelength and a second selected wavelength which both correspond to temperature-dependent transitions of a combustion species of the gas, wherein the first selected wavelength and the second selected wavelength are not near absorption peaks of neighboring wavelengths; a detector sensing the radiation beam passing through the combustion gas and generating an absorption signal indicative of an absorption of the beam by the combustion gas at each of the first wavelength and the second wavelength, and a processor executing a program stored on a non-transitory storage medium determining a combustion gas temperature based on a ratio of the adoption signals for the first wavelength and the second wavelength.
摘要翻译：一种安装在燃气轮机中的燃烧气体测量装置，包括：可调谐激光器，其产生通过燃烧气体路径的辐射束; 调谐所述激光器以发射具有至少第一选定波长和第二选定波长的辐射的控制器，其对应于所述气体的燃烧物质的温度依赖性跃迁，其中所述第一选定波长和所述第二选定波长不接近吸收相邻波长的峰; 检测器，其感测通过燃烧气体的辐射束，并且产生指示在第一波长和第二波长中的每一个处由燃烧气体吸收光束的吸收信号，以及处理器，其执行存储在非瞬时的程序存储介质基于第一波长和第二波长的采用信号的比率来确定燃烧气体温度。

3. 发明授权

US08702302B2 Hot gas temperature measurement in gas turbine using tunable diode laser 有权
标题翻译：燃气轮机采用可调二极管激光器进行热气体温度测量
公开(公告)号：US08702302B2
公开(公告)日：2014-04-22
申请号：US12880681
申请日：2010-09-13
申请人： Vivek Venugopal Badami , Scott Mordin Hoyte , Chayan Mitra , Ayan Banerjee
发明人： Vivek Venugopal Badami , Scott Mordin Hoyte , Chayan Mitra , Ayan Banerjee
IPC分类号： G01K7/00
CPC分类号： G01K13/02 , G01J3/108 , G01J3/427 , G01K11/12 , G01K2013/024
摘要： A combustion gas measurement apparatus mounted in a gas turbine including: a tunable laser generating a radiation beam passing through a combustion gas path; a controller tuning the laser to emit radiation having at least a first selected wavelength and a second selected wavelength which both correspond to temperature-dependent transitions of a combustion species of the gas, wherein the first selected wavelength and the second selected wavelength are not near absorption peaks of neighboring wavelengths; a detector sensing the radiation beam passing through the combustion gas and generating an absorption signal indicative of an absorption of the beam by the combustion gas at each of the first wavelength and the second wavelength, and a processor executing a program stored on a non-transitory storage medium determining a combustion gas temperature based on a ratio of the adoption signals for the first wavelength and the second wavelength.
摘要翻译：一种安装在燃气轮机中的燃烧气体测量装置，包括：可调谐激光器，其产生通过燃烧气体路径的辐射束; 调谐所述激光器以发射具有至少第一选定波长和第二选定波长的辐射的控制器，其对应于所述气体的燃烧物质的温度依赖性跃迁，其中所述第一选定波长和所述第二选定波长不接近吸收相邻波长的峰; 检测器，其感测通过燃烧气体的辐射束，并且产生指示在第一波长和第二波长中的每一个处由燃烧气体吸收光束的吸收信号，以及处理器，其执行存储在非瞬时的程序存储介质基于第一波长和第二波长的采用信号的比率来确定燃烧气体温度。

4. 发明授权

US08587660B2 Image recording assemblies and coupling mechanisms for stator vane inspection 有权
标题翻译：用于定子叶片检查的图像记录组件和联接机构
公开(公告)号：US08587660B2
公开(公告)日：2013-11-19
申请号：US12847909
申请日：2010-07-30
申请人： Chayan Mitra , Munish Vishwas Inamdar , Vinay Bhaskar Jammu , Vinod Padmanabhan Kumar , Kunal Ravindra Goray , Achalesh Kumar Pandey , Ravi Yoganatha Babu , Sheri George , Bhasker Rao Keely
发明人： Chayan Mitra , Munish Vishwas Inamdar , Vinay Bhaskar Jammu , Vinod Padmanabhan Kumar , Kunal Ravindra Goray , Achalesh Kumar Pandey , Ravi Yoganatha Babu , Sheri George , Bhasker Rao Keely
IPC分类号： H04N7/18
CPC分类号： H04N7/18 , G01N29/0654
摘要： A system is disclosed that includes an image recording assembly for recording images of a stator vane of a compressor and a mechanism configured to magnetically couple the image recording assembly to a rotor blade of a compressor. Additional systems are provided that include image recording assemblies. Methods implementing the disclosed systems are also provided.
摘要翻译：公开了一种系统，其包括用于记录压缩机的定子叶片的图像的图像记录组件和被配置为将图像记录组件磁耦合到压缩机的转子叶片的机构。提供了包括图像记录组件的附加系统。还提供了实现所公开的系统的方法。

5. 发明授权

US08424292B2 Systems and apparatus relating to the monitoring and/or controlling of selective catalytic reduction processes 有权
标题翻译：与选择性催化还原过程的监测和/或控制相关的系统和设备
公开(公告)号：US08424292B2
公开(公告)日：2013-04-23
申请号：US12650825
申请日：2009-12-31
申请人： Scott M. Hoyte , Vivek V. Badami , Chayan Mitra , Ayan Banerjee
发明人： Scott M. Hoyte , Vivek V. Badami , Chayan Mitra , Ayan Banerjee
IPC分类号： F01N3/00
CPC分类号： G01J3/10 , B01D53/8631 , B01D53/9431 , B01D53/9495 , F01N3/208 , F01N11/00 , F01N2560/021 , F01N2560/026 , F01N2560/028 , F01N2560/12 , F01N2610/02 , G01J3/02 , G01J3/0294 , G01J3/108 , G01J3/32 , G01J3/36 , G01J3/42 , G01J2003/104 , G01M15/108 , G01N21/3504 , G01N21/359 , G01N21/39 , G01N2021/399 , Y02T10/24 , Y02T10/47
摘要： A system for the monitoring and/or controlling emission levels of nitrogen oxide and a reductant from a stream of combustion exhaust, wherein the internal combustion engine includes a SCR unit disposed in the stream of combustion exhaust between an upstream conduit and a downstream conduit, the SCR unit having a catalyst that is configured to catalytically reduce nitrogen oxides contained in the combustion exhaust to elemental nitrogen in the presence of a reductant and oxygen, and wherein the internal combustion engine further includes a reductant injector; the system comprising: a laser absorption spectroscopy unit that is disposed in the downstream conduit and configured to measure the concentration level of at least nitrogen oxide and the reductant in the exhaust; and a control unit.
摘要翻译：一种用于监测和/或控制来自燃烧排气流的氮氧化物和还原剂的排放水平的系统，其中所述内燃机包括设置在上游管道和下游管道之间的燃烧排气流中的SCR单元， SCR单元，其具有催化剂，其被配置为在还原剂和氧气存在下将包含在燃烧废气中的氮氧化物催化还原成元素氮，并且其中所述内燃机还包括还原剂喷射器; 所述系统包括：激光吸收光谱单元，其设置在所述下游导管中并且被配置为测量所述排气中的至少氮氧化物和所述还原剂的浓度水平; 和控制单元。

6. 发明授权

US08711340B2 Auto-aligning spectroscopy system 有权
标题翻译：自动对准光谱系统
公开(公告)号：US08711340B2
公开(公告)日：2014-04-29
申请号：US13118631
申请日：2011-05-31
申请人： Sandip Maity , Chayan Mitra , Rachit Sharma
发明人： Sandip Maity , Chayan Mitra , Rachit Sharma
IPC分类号： G01N21/00 , G01B11/14
CPC分类号： G01J3/02 , G01N21/39 , G01N2021/399
摘要： An auto-aligning system is presented. One embodiment of the auto-aligning system includes a launcher unit configured to direct a first laser beam and a second laser beam through a chamber, wherein the first laser beam is co-linear with the second laser beam. The auto-aligning spectroscopy system further includes a receiver unit configured to receive the first laser beam and the second laser beam passing through the chamber. The receiver unit includes a first detector configured to determine an intensity of the first laser beam. The receiver unit also includes a second detector configured to determine a deviation of the second laser beam from a determined position. Further, the auto-aligning spectroscopy system includes a motorized stage configured to align the launcher unit to a base-line position based on the determined deviation of the second laser beam.
摘要翻译：提出了自动对准系统。自动对准系统的一个实施例包括：发射器单元，被配置为引导第一激光束和第二激光束通过腔室，其中第一激光束与第二激光束共线。自动对准光谱系统还包括被配置为接收通过该腔室的第一激光束和第二激光束的接收器单元。接收器单元包括被配置为确定第一激光束的强度的第一检测器。接收器单元还包括被配置为确定第二激光束与确定位置的偏差的第二检测器。此外，自动对准光谱系统包括被配置为基于确定的第二激光束的偏差将发射器单元对准基线位置的电动台。

7. 发明申请

US20140075954A1 Methods And Systems For Substance Profile Measurements In Gas Turbine Exhaust 审中-公开
标题翻译：燃气轮机废气中物质轮廓测量的方法和系统
公开(公告)号：US20140075954A1
公开(公告)日：2014-03-20
申请号：US13617192
申请日：2012-09-14
申请人： Nilesh Tralshawala , Robert Joseph Iasillo , Chayan Mitra , Robert Frank Hoskin
发明人： Nilesh Tralshawala , Robert Joseph Iasillo , Chayan Mitra , Robert Frank Hoskin
IPC分类号： F02C7/00
CPC分类号： G01M15/10 , G01M15/14
摘要： Methods and systems for substance profile measurements in gas turbine exhaust. In an embodiment, a concentration of a substance may be determined and associated with a combustor out of a plurality of combustors. An alert may be transmitted in reference to the combustor when the concentration of the substance crosses a threshold level.
摘要翻译：燃气轮机排气中物质分布测量的方法和系统。在一个实施方案中，可以确定物质的浓度并与多个燃烧器中的燃烧器相关联。当物质的浓度超过阈值水平时，可以参考燃烧器传送警报。

8. 发明申请

US20120026306A1 Image Recording Assemblies and Coupling Mechanisms For Stator Vane Inspection 有权
标题翻译：用于定子叶片检查的图像记录组件和耦合机构
公开(公告)号：US20120026306A1
公开(公告)日：2012-02-02
申请号：US12847909
申请日：2010-07-30
申请人： Chayan Mitra , Munish Vishwas Inamdar , Vinay Bhaskar Jammu , Vinod Padmanabhan Kumar , Kunal Ravindra Goray , Achalesh Kumar Pandey , Ravi Yoganatha Babu , Sheri George , Bhasker Rao Keely
发明人： Chayan Mitra , Munish Vishwas Inamdar , Vinay Bhaskar Jammu , Vinod Padmanabhan Kumar , Kunal Ravindra Goray , Achalesh Kumar Pandey , Ravi Yoganatha Babu , Sheri George , Bhasker Rao Keely
IPC分类号： H04N7/18
CPC分类号： H04N7/18 , G01N29/0654
摘要： A system is disclosed that includes an image recording assembly for recording images of a stator vane of a compressor and a mechanism configured to magnetically couple the image recording assembly to a rotor blade of a compressor. Additional systems are provided that include image recording assemblies. Methods implementing the disclosed systems are also provided.
摘要翻译：公开了一种系统，其包括用于记录压缩机的定子叶片的图像的图像记录组件和被配置为将图像记录组件磁耦合到压缩机的转子叶片的机构。提供了包括图像记录组件的附加系统。还提供了实现所公开的系统的方法。

9. 发明申请

US20070069132A1 Measurement of Steam Quality Using Multiple Broadband Lasers 有权
标题翻译：使用多个宽带激光测量蒸汽质量
公开(公告)号：US20070069132A1
公开(公告)日：2007-03-29
申请号：US11162969
申请日：2005-09-29
申请人： Chayan Mitra , Mark Woodmansee , Ayan Banerjee
发明人： Chayan Mitra , Mark Woodmansee , Ayan Banerjee
IPC分类号： G01J5/02
CPC分类号： G01N21/39 , G01N21/3504 , G01N2021/354
摘要： Determination of steam quality by passing one or more laser beams through steam in a steam chamber and directly determining a total number of vapor molecules and a total number of water molecules based on absorption of radiation in the one or more laser beams by the water vapor phase and the liquid water phase in the steam. Specific volumes of water vapor phase and liquid water phase in the steam using the total numbers of water vapor and liquid water molecules are determined and the quality of the steam is calculated based on the specific volumes of the water vapor phase and the liquid water phase in steam. One embodiment comprises a narrow linewidth laser for measuring steam quality and another embodiment comprises multiple broadband lasers for measuring steam quality.
摘要翻译：通过使一个或多个激光束通过蒸汽室中的蒸汽来确定蒸汽质量，并且基于通过水蒸气相在一个或多个激光束中的辐射的吸收直接确定蒸汽分子的总数和总分子数和蒸汽中的液态水相。确定蒸汽中水蒸气相和液态水相的体积，使用水蒸汽和液态水分子的总数，并根据水汽相和液态水相的体积计算蒸汽的质量蒸汽。一个实施例包括用于测量蒸汽质量的窄线宽激光器，另一个实施例包括用于测量蒸汽质量的多个宽带激光器。

10. 发明授权

US08602722B2 System and method for inspection of stator vanes 有权
标题翻译：定子叶片检查系统及方法
公开(公告)号：US08602722B2
公开(公告)日：2013-12-10
申请号：US12714207
申请日：2010-02-26
申请人： Sheri George , Vinay Bhaskar Jammu , Vinod Padmanabhan Kumar , Chayan Mitra , Kunal Ravindra Goray , Achalesh Kumar Pandey , Ravi Yoganatha Babu , Bhasker Rao Keely , Munish Vishwas Inamdar
发明人： Sheri George , Vinay Bhaskar Jammu , Vinod Padmanabhan Kumar , Chayan Mitra , Kunal Ravindra Goray , Achalesh Kumar Pandey , Ravi Yoganatha Babu , Bhasker Rao Keely , Munish Vishwas Inamdar
IPC分类号： F01D25/00
CPC分类号： F01D21/003 , F01D25/285 , F05D2260/80 , F05D2270/8041 , G01N21/954 , G01N2021/8887 , Y02T50/671
摘要： Embodiments of the invention include an inspection system to inspect internal components of a compressor of a gas turbine engine. The inspection system includes an image recording assembly having one or more image recording devices, light sources, storage devices, and power supplies. The image recording assembly may be inserted into a compressor without removal of the compressor housing or disassembly of the compressor. The image recording assembly may be removably coupled to a rotary component of the compressor, e.g., a rotor blade, and used to record images of stationary components, e.g., stator vanes, of the compressor. The images may be inspected to identify wear and/or defects in the stationary components, e.g., stator vanes.
摘要翻译：本发明的实施例包括检查燃气涡轮发动机的压缩机的内部部件的检查系统。检查系统包括具有一个或多个图像记录装置，光源，存储装置和电源的图像记录组件。图像记录组件可以插入压缩机中，而不需要拆除压缩机壳体或压缩机的拆卸。图像记录组件可以可拆卸地联接到压缩机的旋转部件，例如转子叶片，并用于记录压缩机的静止部件（例如定子叶片）的图像。可以检查图像以识别固定部件（例如定子叶片）中的磨损和/或缺陷。

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