Application of the Self Calibrating Emissivity and/or Transmissivity IndependentMultiwavelength Pyrometer in an Intense Ambient Radiation Environment

摘要

The NASA self calibrating multiwavelength pyrometer is a recent addition to thelist of pyrometers used in remote temperature measurement in research and development. The older one-color, two-color, and the disappearing filament pyrometers, as well as the multicolor and early multiwavelength pyrometers, all do not operate successfully in situations in which strong ambient radiation coexists with radiation originating from the measured surface. In such situations radiation departing from the target surface arrives at the pyrometer together with radiation coming from another source either directly or through reflection. Unlike the other pyrometers, the self calibrating multiwavelength pyrometer can still calibrate itself and measure the temperatures in this adverse environment.