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Infrared Radiation
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| The pyrgeometer provides high accuracy infrared radiation measurements for meteorological purposes in a wavelength range of 450 to 4200 nm. The way the instrument works is similar to the pyranometer. The voltage output signal is proportional to the amount of incident infrared radiation which is afterwards converted to W/m². Like the pyranometer, in addition to the main thermopile sensing device, a body thermistor provides temperature compensations. The outer surface of the single ellipse-shaped solar blind silicone dome, has been protected with a hard carbon coating against oxygenation and scratching. The dome ring was designed to drive away the heat load of the dome for accurate day time measurements. This pyrgeometer works under temperatures ranging from –40°C to 80°C, and with a thermopile output between –250 W/m²-250 W/m². |
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| The infrared sensor as depicted on the Kipp & Zonen website. |
The infrared sensor is secured to the top of the mast attached to the starboard side bridge wing. |
The infrared sensor, shown in the upper center portion of the picture, is housed within a ventilator and attached to the top of the bridge wing mast. |
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