{
  "$type": "site.standard.document",
  "description": "A method of detecting an amount of a contaminant in an enclosure, the method comprising: detecting (S7) a first amplitude of energy within a first wavelength band of a first width centered about an emission wavelength of the contaminant, the method characterized by: detecting (S8) a second…",
  "path": "/patents/1097253",
  "publishedAt": "2003-04-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01D17/02",
    "MEGGITT AVIONICS INC [US]"
  ],
  "textContent": "A method of detecting an amount of a contaminant in an enclosure, the method comprising: detecting (S7) a first amplitude of energy within a first wavelength band of a first width centered about an emission wavelength of the contaminant, the method characterized by: detecting (S8) 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; determining (218) a ratio of the first amplitude of energy to the second amplitude of energy; and comparing (220) the ratio to a known threshold to determine the amount of contaminant in the enclosure.",
  "title": "Method and apparatus for characterizing a combustion flame"
}