Pulsable IR Sources
EF Series – NiCr Filament
Nichrome (NiCr) filaments are made from ultra thin metallic strips. The metallic strips have a very high surface to volume ratio and thus a very short thermal time constant. They heat up and cool down or modulate very rapidly. The elements are typically attached in a series configuration to increase the overall resistance of the emitter (EF-series). This unique design avoids the problem of “current crowding” which causes uneven heating of the radiating elements often encountered with planar IR emitters.
Window options denoted by X include: No Window (X=0), Sapphire (X=1), CaF2 (X=2), ZnSe (X=3)