Method and apparatus for characterizing a combustion flame
    1.
    发明授权
    Method and apparatus for characterizing a combustion flame 失效
    表征燃烧火焰的方法和装置

    公开(公告)号:US6071114A

    公开(公告)日:2000-06-06

    申请号:US985836

    申请日:1997-12-05

    Abstract: Characteristics of a flame within a turbine or burner are determined based upon ultraviolet, visible, and infrared measurements of the flame. The measurements include the amplitude of frequency bands that are indicative of an efficient combustion process, such as those that increase when the flame temperature increases. The measurements also include the amplitude of frequency bands that are indicative of an inefficient combustion process, such as those that do not vary, increase a relatively small amount, or decrease when the flame temperature increases. The temperature of the flame may therefore be determined accurately, to facilitate efficient operation of the turbine or burner, while minimizing polluting emissions.

    Abstract translation: 基于火焰的紫外线,可见光和红外测量值来确定涡轮或燃烧器内火焰的特性。 测量包括指示有效燃烧过程的频带的幅度,例如当火焰温度升高时增加的频带的振幅。 测量还包括指示低效燃烧过程的频带的振幅,例如不变的那些,增加相对较小的量,或者当火焰温度升高时降低。 因此,可以精确地确定火焰的温度,以便于涡轮机或燃烧器的有效运行,同时最小化污染排放。

    Temperature measuring method using infrared sensors and processor
    4.
    发明授权
    Temperature measuring method using infrared sensors and processor 失效
    使用红外传感器和处理器的温度测量方法

    公开(公告)号:US5099121A

    公开(公告)日:1992-03-24

    申请号:US521967

    申请日:1990-05-11

    Applicant: John B. Allen

    Inventor: John B. Allen

    CPC classification number: G01J5/602 G01J2005/604 G01J5/0014

    Abstract: A method of measuring the temperature of a remote body which comprises determining the frequency range to be covered and the portion of that range or frequency band to be covered by each detector of a detector array or by a single detector via a filter for applying different frequency bands to the single detector. The required detector or detectors are then provided and sense the energy radiated by the remote body whose temperature is to be measured. The detector or detectors then provide an output of the amount of energy measured in each unique frequency band and sends these measured outputs to a processor. The processor receives the measured outputs from the detector(s) and determines therefrom in accordance with an algorithm thereat the measured temperature. The processor then provides an output indicative of the measured temperature.

    Dual spectra optical pyrometer having a serial array of photodectectors
    6.
    发明授权
    Dual spectra optical pyrometer having a serial array of photodectectors 失效
    双光谱光学高温计具有串联的光电探测器阵列

    公开(公告)号:US4681434A

    公开(公告)日:1987-07-21

    申请号:US798213

    申请日:1985-11-14

    Applicant: Dean A. Kepple

    Inventor: Dean A. Kepple

    CPC classification number: G01J5/28 G01J2001/1652 G01J2005/604 G01J2005/607

    Abstract: A novel dual spectra optical pyrometer is characterized by a serial array of photodetectors. The first photodetector absorbs a spectral portion of a target optical beam incident thereto, and passes the remainder optical beam to the second photodetector. Signals from both photodetectors are provided along with signals indicative of the first detector's spectral absorption and an estimate of the equivalent black body temperature of a fireball to a signal processor which provides a compensated temperature signal therefrom.

    Abstract translation: 一种新型的双光谱光学高温计的特征在于一系列光电检测器。 第一光电检测器吸收入射到其中的目标光束的光谱部分,并将剩余光束传递到第二光电检测器。 提供来自两个光电检测器的信号以及指示第一检测器的光谱吸收的信号以及将火球的等效黑体温度估计给信号处理器,信号处理器从其提供经补偿的温度信号。

    Narrow spectral band pyrometry
    8.
    发明授权
    Narrow spectral band pyrometry 失效
    窄谱带高温计

    公开(公告)号:US5203631A

    公开(公告)日:1993-04-20

    申请号:US779444

    申请日:1991-10-18

    CPC classification number: G01J5/602 G01J2005/604

    Abstract: A narrow-band pyrometric system measures the temperature of an object (1), such as a semiconductor wafer (1), that is coated with a film (2) having an absorption band. The thermal radiation emitted by the coated object (1) passes through a lens (3) and aperture (4), and then a filter (5). The passband of this filter (5) falls within the absorption band of the film (2). The transmitted radiation is then collected by the radiation detector (6), which measures the intensity. The detected radiation is at a wavelength where the heated object (1) is substantially opaque, and the effect of uncertainties in the emissivity on the temperature measurement is minimized. Thus, a method is provided to coat the object (1) with a film (2) of material having an absorption band encompassing the filter (5) passband, and a thickness sufficiently great that the object (1) appears opaque when viewed through the filter (5). Alternatively, the film (2) material and thickness must be such that the emissivity is constant and accurately known in the passband wavelength region.

    Abstract translation: 窄带高温测量系统测量涂覆有具有吸收带的膜(2)的物体(1)的温度,例如半导体晶片(1)。 涂覆物体(1)发射的热辐射通过透镜(3)和孔(4),然后穿过滤光片(5)。 该滤光器(5)的通带落在薄膜(2)的吸收带内。 然后由辐射检测器(6)收集透射的辐射,其测量强度。 检测到的辐射处于加热物体(1)基本上不透明的波长处,并且使发射率对温度测量的不确定性的影响最小化。 因此,提供了一种方法来涂覆具有包围过滤器(5)通带的吸收带的材料的膜(2),并且具有足够大的厚度,使得当通过所述过滤器(5)观察时物体(1)看起来不透明 过滤器(5)。 或者,膜(2)的材料和厚度必须使得发射率在通带波长区域中是恒定的并且是精确地已知的。

    Reflection corrected radiosity optical pyrometer
    9.
    发明授权
    Reflection corrected radiosity optical pyrometer 失效
    反射校正辐射度光学高温计

    公开(公告)号:US4708474A

    公开(公告)日:1987-11-24

    申请号:US798212

    申请日:1985-11-14

    CPC classification number: G01J5/60 G01J2005/0059 G01J2005/604 G01J2005/607

    Abstract: A reflection corrected radiosity optical pyrometer includes an optical guide for receiving a target optical beam from a turbine blade in a jet engine. The target optical beam is provided to a detector module that divides the target optical beam into two beams, one having a spectral width selected to be less than the target optical beam spectral width. A signal processor receives signals from the detector module indicative of the energy of the two beams, calculates a reflection corrected energy signal directly therefrom and provides a correct target temperature signal.

    Abstract translation: 反射校正辐射度光学高温计包括用于从喷气发动机中的涡轮机叶片接收目标光束的光导。 将目标光束提供给检测器模块,该检测器模块将目标光束分成两束,其中光束宽度被选择为小于目标光束光谱宽度。 信号处理器从检测器模块接收指示两个光束的能量的信号,直接从其计算反射校​​正的能量信号并提供正确的目标温度信号。

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