BTS2048-UV-S-WP Validated for Solar UV Radiation Monitoring

A technical paper entitled BTS Array Radiometer Validation is now available which details the validation work and measurement results of Gigahertz-Optik's BTS2048-UV-S-TEC-WP Array Spectroradiometer as an alternative to the traditionally used double monochromator spectroradiometer (DM) for long term continuous outdoor solar UV monitoring.

The BTS2048-UV-S-TEC-WP is a compact and portable high-accuracy diode array spectroradiometer in a environmental proof temperature controlled housing with state-of-the-art optical, electronic and mechanical interfaces for outdoor UV measurements. Humidity is removed by an exchangeable cartridge. To avoid dust, rain or snow collection on the entrance optics its quartz dome is blown-dried by warm air. Through innovative spectrometer and filtering design, a stray light rejection of better than four decades is achieved making it capable of measuring solar radiation below 300 nm.

An initial comparison of the BTS2048-UV-S-TEC-WP versus the DM was conducted by measuring the solar spectral irradiance from 290 to 400nm.

Upon validation the BTS2048-UV-S-TEC-WP was installed on the environmental research station Schneefernerhaus (UFS) located on the Zugspitze, Germany 2666 meters above sea level. Daily scans were performed over the course of a year from August 2017 through July 2018.

• The BTS was found to be a good alternative to the DM:
• Smaller footprint, lighter portable, less expensive than the DM
• No light guide for better stability
• Shorter measurement time allows for accurate measurements at fast changing cloud conditions with high spectral resolution   
• 4 to 5 magnitude dynamic measurement range

Click on link for your copy of the technical article as a PDF: 

BTS Array Radiometer Validation

Note: You may ask why am I receiving this email on the subject of solar UV monitoring? The reasoning is that if this array radiometer can accurately measure solar UV radiation which is most difficult to accomplish.  It is certainly more than capable of accurately measuring UV from any type of source in your application.

See the entire BTS2048 series spectroradiometers here: BTS2048 Spectroradiometers