How is NEDT measured?

How is NEDT measured? NEDT (noise equivalent differential temperature) is the key figure of merit which is used to qualify midwave (MWIR) and longwave (LWIR) infrared cameras.  It is a signal-to-noise figure which represents the temperature difference which would produce a signal equal to the camera’s temporal noise.  It therefore represents approximately the…

How is NEDT measured?

  How is NEDT measured? NEDT (noise equivalent differential temperature) is the key figure of merit which is used to qualify midwave (MWIR) and longwave (LWIR) infrared cameras.  It is a signal-to-noise figure which represents the temperature difference which would produce a signal equal to the camera’s temporal noise.  It therefore represents approximately…

D* Specification

  We don't use D* because it is an obsolete figure of merit which was used to compare single element detectors. It does not work well for comparing FPA type detectors. It has been replaced by NEDT by the industry because there are no assumptions or approximations in the calculations…