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    • 62. 发明申请
    • DYNAMIC LASER POWER CONTROL FOR GAS SPECIES MONITORING
    • 用于气体物种监测的动态激光功率控制
    • US20080265142A1
    • 2008-10-30
    • US12166222
    • 2008-07-01
    • William A. VON DRASEKShawn D. WeheMark G. Allen
    • William A. VON DRASEKShawn D. WeheMark G. Allen
    • G01J1/04
    • G01N21/39G01N2201/12
    • A gas species monitoring system includes a laser, a fiber amplifier configured to receive an input signal from the laser and generate an amplified signal, and a variable optical attenuation system configured to receive at least a portion of the amplified signal and generate an attenuated signal for delivery to a measurement point, where the measurement point includes a gaseous fluid. The system further includes a detector configured to receive and process a signal from the measurement point so as to obtain a measured signal that correlates with the presence of a gas species within the gaseous fluid at the measurement point, and a processor in communication with at least the variable optical attenuation system and the detector. The processor controls the variable optical attenuation system based upon the measured signal.
    • 气体种类监测系统包括激光器,被配置为从激光器接收输入信号并产生放大信号的光纤放大器,以及可变光衰减系统,被配置为接收放大信号的至少一部分并产生衰减信号 输送到测量点,其中测量点包括气态流体。 该系统还包括检测器,其被配置为接收并处理来自测量点的信号,以便获得与测量点处的气态流体内的气体种类的存在相关的测量信号,以及至少与 可变光衰减系统和检测器。 处理器基于测量信号控制可变光衰减系统。