Cold Loads for Radiometer Calibration
ProSensing designs and builds cold-reference loads for use in radiometer calibration. Also referred to as COLFETs, these devices operate at ambient temperature, yet have a brightness temperature that was previously obtainable only from cryogenic cooling. ProSensing radiometers that use these COLFETs have shown long-term calibration drift of less than 2K-per-year.
Custom designs for narrow and wide bandwidth operation are available upon request.