| 摘要 |
2129329 9318418 PCTABS00025 A method is provided for determining the humidity and temperature of atmospheric air at selected distances along a field of view (99, 100) by passive IR spectrometry. An IR spectrometer (98) is provided. A plurality of IR power densities values received by the spectrometer along the field of view at a plurality of discrete, selected IR wavelengths are measured. A set of equations which equate the measured IR power density to functions of temperature and humidity at the selected wavelengths is provided. From the set of equations the temperature and humidity of the atmospheric air along the field of view (99, 100) at selected range segments along the field of view (99, 100) are calculated. |
