Infrared Calibration Source
High Temperature Primary Infrared Calibration Source
The Oberon R uses a Sodium Heat Pipe to ensure an exceptionally low temperature gradient along the furnace core. It is ideal for the realization of Aluminium, Silver or Copper ITS-90 Fixed Points.
It may be used as a blackbody source over the range of 450°C to 1100°C.
The furnace heater is of the non-inductive birdcage design insulated by twin bore alumina tubes. The heatpipe is designed so that the inner wall is not subject to thermal expansion stressed from the outer wall before the heat pipe eches conduction temperature. The working fluid is permanently and safely sealed within the plasma-arc welded enclosure.