利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

26 条记录 (耗时 0.036 秒)

    SYSTEM AND METHODS FOR MAKING TEMPERATURE AND PRESSURE MEASUREMENTS UTILIZING A TUNABLE LASER DIODE
    6.
    发明申请
    SYSTEM AND METHODS FOR MAKING TEMPERATURE AND PRESSURE MEASUREMENTS UTILIZING A TUNABLE LASER DIODE 审中-公开
    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。

    HOT GAS TEMPERATURE MEASUREMENT IN GAS TURBINE USING TUNABLE DIODE LASER
    7.
    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

    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。

    Auto-aligning spectroscopy system
    8.
    发明授权
    Auto-aligning spectroscopy system 有权
    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。

    Measurement of Steam Quality Using Multiple Broadband Lasers
    10.
    发明申请
    Measurement of Steam Quality Using Multiple Broadband Lasers 有权
    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。