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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。
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公开(公告)号：US20070069131A1
公开(公告)日：2007-03-29
申请号：US11162967
申请日：2005-09-29
申请人： Ayan Banerjee , Chayan Mitra , Mark Woodmansee
发明人： Ayan Banerjee , Chayan Mitra , Mark Woodmansee
IPC分类号： G01J5/02
CPC分类号： G01N21/39 , G01N21/3504 , G01N21/3554 , G01N2021/158 , 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。
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3.发明授权Systems and apparatus relating to the monitoring and/or controlling of selective catalytic reduction processes 有权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。
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4.发明申请HOT GAS TEMPERATURE MEASUREMENT IN GAS TURBINE USING TUNABLE DIODE LASER 有权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
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。
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5.发明申请SYSTEMS AND APPARATUS RELATING TO THE MONITORING AND/OR CONTROLLING OF SELECTIVE CATALYTIC REDUCTION PROCESSES 有权与选择性催化还原过程的监测和/或控制相关的系统和装置公开(公告)号：US20110154806A1
公开(公告)日：2011-06-30
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
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。
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公开(公告)号：US20100047058A1
公开(公告)日：2010-02-25
申请号：US12198026
申请日：2008-08-25
申请人： Chayan Mitra , Ayan Banerjee , Norman Arnold Turnquist , Danian Zheng , Sandip Maity , Roy Paul Swintek
发明人： Chayan Mitra , Ayan Banerjee , Norman Arnold Turnquist , Danian Zheng , Sandip Maity , Roy Paul Swintek
CPC分类号： G01K11/125 , F01D17/085 , F01D21/003 , G01K13/08
摘要： A method for measuring temperature of a rotating body such as a steam turbine is provided. The method includes striking a light beam onto the rotating body onto the rotating body and measuring a reflectance of the light beam from the rotating body. The method further includes obtaining a temperature of the rotating body based upon the measured reflectance.
摘要翻译： 提供了一种用于测量蒸汽轮机等旋转体的温度的方法。 该方法包括将旋转体上的光束照射到旋转体上并测量来自旋转体的光束的反射率。 该方法还包括基于所测量的反射率获得旋转体的温度。
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公开(公告)号：US07381954B2
公开(公告)日：2008-06-03
申请号：US11162967
申请日：2005-09-29
申请人： Ayan Banerjee , Chayan Mitra , Mark A. Woodmansee
发明人： Ayan Banerjee , Chayan Mitra , Mark A. Woodmansee
IPC分类号： G01J5/02
CPC分类号： G01N21/39 , G01N21/3504 , G01N21/3554 , G01N2021/158 , 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。
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8.发明授权公开(公告)号：US08702302B2
公开(公告)日：2014-04-22
申请号：US12880681
申请日：2010-09-13
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。
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公开(公告)号：US20090101822A1
公开(公告)日：2009-04-23
申请号：US11874422
申请日：2007-10-18
申请人： Chayan Mitra , Ayan Banerjee , Sandip Maity , Bruce Gordon Norman , David Wesley Ball, Jr. , Aarron Dell Johansen
发明人： Chayan Mitra , Ayan Banerjee , Sandip Maity , Bruce Gordon Norman , David Wesley Ball, Jr. , Aarron Dell Johansen
CPC分类号： G01N21/534 , G01N21/3151 , G01N2021/3155 , Y02E20/16
摘要： A fuel moisturization sensor system is disclosed. The fuel moisturization sensor system includes a first light source configured for emitting light through a fuel and moisture flow path at a first wavelength, wherein the first wavelength is at least partially absorbable by the moisture when in a vapor phase and substantially not absorbable by the fuel, and a second light source configured for emitting light through the fuel and moisture flow path at a second wavelength, wherein the second wavelength is preferentially scattered by moisture when in a liquid phase and substantially not absorbed by the fuel or by the moisture when in a vapor phase, a detector system configured to detect light transmitted through the flow path at the first and second wavelengths and to generate a first data signal corresponding to the transmission at the first wavelength and a second data signal corresponding to the transmission at the second wavelength.
摘要翻译： 公开了一种燃料保湿传感器系统。 燃料保湿传感器系统包括第一光源，其被配置用于通过燃料和湿气流路以第一波长发光，其中第一波长在气相中至少部分地被水分吸收并且基本上不被燃料吸收 以及第二光源，其被配置为用于通过所述燃料和湿气流路以第二波长发射光，其中所述第二波长在液相中优先被水分散射，并且基本上不被燃料或水分吸收时 气相，检测器系统，被配置为检测在第一和第二波长处通过流路传输的光，并且产生对应于第一波长的透射的第一数据信号和对应于第二波长的透射的第二数据信号。
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公开(公告)号：US07345280B2
公开(公告)日：2008-03-18
申请号：US11162969
申请日：2005-09-29
申请人： Chayan Mitra , Mark A Woodmansee , Ayan Banerjee
发明人： Chayan Mitra , Mark A 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。
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