Another exciting pyrheliometer comparison is taking place: The Baltic Region Pyrheliometer Comparison (BRPC), hosted by SMHI, the Swedish Meteorological and Hydrological Institute. Davos Instruments is very pleased to participate in this event.
Davos Instruments is participating in the NREL Pyrehliometer Comparison in Golden USA. Davos Instruments is sucessfully operating two PMO8 radiometers with Linard control units. It is the first time, PMO8 radiometers are taking part in this comparison event at NREL.
Diffraction effects in solar radiometry become more and more important once the target uncertainty goes below 0.1%. At the radiometric two aperture system, diffraction occurs at the front aperture, and thus reduces or enhances the amount of solar radiation passing the second aperture and reaching the detector. This strongly wavelength dependent effect has an impact in the order of 0.1% and can increase by up to 50% depending on the spectral conditions. This leads to an error in the measurement that needs to be corrected if high accuracy is needed.
„Adaptive Diffraction Corrections“ weiterlesen
Finally the solar radiometry crowd gathers again in Davos, Switzerland. The 13th International Pyrheliometer Comparison (IPC) has successfully started. It is a great pleasure to meet again in person and to compare our instruments together. With close to a 100 absolute cavity radiometers present, it is an excellent opportunity to independently study the performance of the radiometers. Several PMO8, manufactured by Davos Instruments, are taking part in the intercomparison. Furthermore, Davos Instruments operates an Eppley AHF-radiometer in active mode: a premiere.
„Successful start of the IPC-XIII“ weiterlesen
November has brought nice weather and clear skies to Davos. Ideal conditions for commissioning and calibration of our new PMO8 radiometers. They have been successfully calibrated and are now delivered to our customers. We are looking forward to the production of the 2021 series.
