POM-01 Sky Radiometer

  • Direct solar measurements using an integrated solar tracker
  • Diffuse and scattered measurements by programmed sky scans
  • Active sun sensor tracking correction

 

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POM-01 Sky Radiometer

The POM-01 sky radiometer uses a single detector and a rotating filter wheel to measure radiation in seven narrow wavebands from 315 nm to 1020 nm. The dedicated sun tracker enables measurement either directly from the sun or at user-defined angles away from the sun.

The instrument has a base with levelling feet and a sun sensor for active tracking. Installation is quick and simple. A precipitation sensor is included so that the radiometer is pointed downwards during rain to keep the optics clean.

POM-01 must be connected to a PC running the operating software in order to make measurements and store data. The software allows comprehensive user selection of the scanning modes.

POM-01 is used in the Asia-Pacific SKYNET network and for aerosol monitoring and satellite ground-truthing around the world. The POM data can be post-processed to provide parameters including aerosol optical depth, scattering coefficients, aerosol distribution and energy distribution. The SKYRAD.pack software for this is a free download from the SKYNET site at http://skyrad.sci.u-toyama.ac.jp/sky_info.html.

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Specifications

Measurement method Filter wheel, photo-diode detector
Sun tracker tripod base, sun sensor and rain sensor included
Wavelengths 315, 400, 500, 675, 870, 940, 1020 nm
Wavelength accuracy 2 nm
View half-angle 0.5 º
Power supply 230 / 115 VAC, optional 24 VDC
Operational temperature range -10 ºC to +45 °C
Low temperature option -30 ºC to +45 °C
High temperature option -10 ºC to +70 ºC

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