초록 ▼

Characteristics of a flame within a turbine or burner are determined based upon ultraviolet, visible, and infrared measurements of the flame. The measurements include a measurement of the amplitude of frequency bands that are indicative of an efficient combustion process, such as those that increase

Characteristics of a flame within a turbine or burner are determined based upon ultraviolet, visible, and infrared measurements of the flame. The measurements include a measurement of 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 of 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. Contaminants in the turbine or burner are detected, and a degree of contamination measured, by detection of energy levels for particular wavelengths associated with a respective contaminant.

대표청구항 ▼

[ What is claimed is:] [1.] An apparatus for detecting an amount of a contaminant in an enclosure, the apparatus comprising:a first detector to detect a first amplitude of energy within a first wavelength band of a first width centered about an emission wavelength of the contaminant;a second detecto

[ What is claimed is:] [1.] An apparatus for detecting an amount of a contaminant in an enclosure, the apparatus comprising:a first detector to detect a first amplitude of energy within a first wavelength band of a first width centered about an emission wavelength of the contaminant;a second detector to detect a second amplitude of energy within a second wavelength band of a second width, larger than the first width, the second wavelength band also centered about the emission wavelength of the contaminant;a calculator to calculate a ratio of the first detected amplitude of energy to the second detected amplitude of energy; anda comparator to compare the calculated ratio to a known threshold to determine the amount of contaminant in the enclosure.