公开(公告)号：US07248755B2

公开(公告)日：2007-07-24

申请号：US10543288

申请日：2004-03-31

申请人： Andrew D Sappey ,  James Howell ,  Henrick Hofvander ,  Bernard Patrick Masterson

发明人： Andrew D Sappey ,  James Howell ,  Henrick Hofvander ,  Bernard Patrick Masterson

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。