poster OSA-FTS 2003 - BIRA-IASBesac2.aeronomie.be/Documents/poster_OSA-FTS_2003.pdf · suntracker...
1
BARCOS (B ruker A utomation and R emote CO ntrol S ystem) is a new system for automatic operation and remote control of a Bruker Fourier Transform spectrometer (FTS) for atmospheric observations. The goal is to enable long-term FTS solar absorption measurements for atmospheric surveillance from a remote site, with minimal human support at the site itself. The system has been developed in the frame of NDSC measurements at remote sites in the (sub)tropics like the Maido summit at Ile de la Réunion (22°S, 55°E, 2200 m asl). BARCOS HARDWARE • a small meteorological station for the observation of the atmospheric measurement conditions and for controlling possible shut-down of the system in case of bad weather, • a data logger with data acquisition and switching modules (housekeeping section). BARCOS SOFTWARE The BARCOS master software, as well as the housekeeping and suntracker sections, are developed under Labview. The master software allows control of the housekeeping (HSK) and suntracker (ST) sections via Labview’s global variables (GV). It communicates with the dedicated FTS OPUS software via a DDE (Dynamic Data Exchange) link. The first development phase of BARCOS has been tested successfully during a campaign of Fourier transform infrared solar absorption measurements at Maido at Ile de la Réunion in September-October 2002. The FTS and control hardware are located inside the cabin. BARCOS’ meteorological station including a rain detector, sensors for wind speed and direction, ambient pressure and direct solar irradiance. By order of BIRA-IASB a new suntracker has been built at the University of Denver. Two stepper motors driving a single flat acquisition mirror, control the tracking mechanism. A horizontal turntable, rigidly attached to the azimuth drive, supports the elevation assembly and the shutter. A high resolution CCD camera, receiving a small part of the solar beam, is used for fine servo-control. The pointing precision is 0.2 arcsec with static and dynamic angular excursions up to 355°. The solar tracker is housed in an enclosure with an automated hatch assembly. An elementary scripting language has been developed so that commands can be parsed and executed at a predefined time or zenith angle. Daily scripts are uploaded and executed automatically by BARCOS. Time Zenith Angle Destination Command Parameter 1 Parameter 2 Parameter 3 N99.99 -80.00 OPU RUN_MACRO C:\OPUS\MACRO\AGC_BRUKER.MTX HCL_LOW 1 N99.99 -78,00 OPU RUN_MACRO C:\OPUS\MACRO\AGC_BRUKER.MTX MCT_LOW 1 N99.99 -76,00 OPU RUN_MACRO C:\OPUS\MACRO\AGC_BRUKER.MTX NO_LOW 1 N99.99 -74,00 OPU RUN_MACRO C:\OPUS\MACRO\AGC_BRUKER.MTX HCN_LOW 1 N99.99 -71,50 OPU RUN_MACRO C:\OPUS\MACRO\AGC_BRUKER.MTX HCL_LOW 1 N99.99 -78,00 OPU RUN_MACRO C:\OPUS\MACRO\AGC_BRUKER.MTX MCT_LOW 1 N99.99 -76,00 OPU RUN_MACRO C:\OPUS\MACRO\AGC_BRUKER.MTX NO_LOW 1 N99.99 -74,00 OPU RUN_MACRO C:\OPUS\MACRO\AGC_BRUKER.MTX HCN_LOW 1 Time Zenith Angle Destination Command Parameter 1 Parameter 2 Parameter 3 N99.99 N99.99 SCR POWERON N99.99 N99.99 HSK SCA N99.99 N99.99 SCR STARTSESSION N99.99 N99.99 HSK SCA N99.99 N99.99 SCR BEFORENOON N99.99 N99.99 HSK SCA N99.99 N99.99 SCR AFTERNOON N99.99 N99.99 HSK SCA N99.99 N99.99 SCR STOPSESSION N99.99 N99.99 HSK SCA N99.99 N99.99 SCR POWEROFF N99.99 N99.99 HSK SCA solar tracker meteo station The authors thank OSTC and PRODEX office for financial support. 1 1 1 1 1 2 2 1 Belgian Institute for Space Aeronomy (BIRA-IASB), Ringlaan 3, B-1180 Brussels, Belgium 2 Department of Physics and Astronomy, University of Denver, Denver, CO 80208, USA
Transcript of poster OSA-FTS 2003 - BIRA-IASBesac2.aeronomie.be/Documents/poster_OSA-FTS_2003.pdf · suntracker...
BARCOS (Bruker Automation and Remote COntrol System) is a new system for automatic operation and remote control of a BrukerFourier Transform spectrometer (FTS) for atmospheric observations. The goal is to enable long-term FTS solar absorption measurementsfor atmospheric surveillance from a remote site, with minimal human support at the site itself. The system has been developed in the frameof NDSC measurements at remote sites in the (sub)tropics like the Maido summit at Ile de la Réunion (22°S, 55°E, 2200 m asl).
BARCOS HARDWARE• a small meteorological station for the observation of theatmospheric measurement conditions and for controlling possibleshut-down of the system in case of bad weather,• a data logger with data acquisition and switching modules(housekeeping section).
BARCOS SOFTWAREThe BARCOS master software, as well as the housekeeping andsuntracker sections, are developed under Labview. The mastersoftware allows control of the housekeeping (HSK) andsuntracker (ST) sections via Labview’s global variables (GV).It communicates with the dedicated FTS OPUS software via aDDE (Dynamic Data Exchange) link.
The first developmentphase of BARCOS hasbeen tested successfullyduring a campaign ofFourier transform infraredsolar absorptionmeasurements at Maidoat Ile de la Réunion inSeptember-October 2002.The FTS and controlhardware are locatedinside the cabin.
BARCOS’ meteorological station including a rain detector,sensors for wind speed and direction, ambient pressure anddirect solar irradiance.
By order of BIRA-IASB a newsuntracker has been built at theUniversity of Denver.Two stepper motors driving asingle flat acquisition mirror,control the tracking mechanism.A horizontal turntable, rigidlyattached to the azimuth drive,supports the elevation assemblyand the shutter. A high resolutionCCD camera, receiving a smallpart of the solar beam, is used forfine servo-control. The pointingprecision is 0.2 arcsec with staticand dynamic angular excursionsup to 355°. The solar tracker ishoused in an enclosure with anautomated hatch assembly.
An elementary scripting language has been developed so thatcommands can be parsed and executed at a predefined time orzenith angle. Daily scripts are uploaded and executedautomatically by BARCOS.
Time Zenith Angle Destination Command Parameter 1 Parameter 2 Parameter 3N99.99 -80.00 OPU RUN_MACRO C:\OPUS\MACRO\AGC_BRUKER.MTX HCL_LOW 1N99.99 -78,00 OPU RUN_MACRO C:\OPUS\MACRO\AGC_BRUKER.MTX MCT_LOW 1N99.99 -76,00 OPU RUN_MACRO C:\OPUS\MACRO\AGC_BRUKER.MTX NO_LOW 1N99.99 -74,00 OPU RUN_MACRO C:\OPUS\MACRO\AGC_BRUKER.MTX HCN_LOW 1N99.99 -71,50 OPU RUN_MACRO C:\OPUS\MACRO\AGC_BRUKER.MTX HCL_LOW 1N99.99 -78,00 OPU RUN_MACRO C:\OPUS\MACRO\AGC_BRUKER.MTX MCT_LOW 1N99.99 -76,00 OPU RUN_MACRO C:\OPUS\MACRO\AGC_BRUKER.MTX NO_LOW 1N99.99 -74,00 OPU RUN_MACRO C:\OPUS\MACRO\AGC_BRUKER.MTX HCN_LOW 1
Time Zenith Angle Destination Command Parameter 1 Parameter 2 Parameter 3N99.99 N99.99 SCR POWERONN99.99 N99.99 HSK SCAN99.99 N99.99 SCR STARTSESSIONN99.99 N99.99 HSK SCAN99.99 N99.99 SCR BEFORENOONN99.99 N99.99 HSK SCAN99.99 N99.99 SCR AFTERNOONN99.99 N99.99 HSK SCAN99.99 N99.99 SCR STOPSESSIONN99.99 N99.99 HSK SCAN99.99 N99.99 SCR POWEROFFN99.99 N99.99 HSK SCA
solar tracker meteo station
The authors thank OSTC and PRODEX office for financial support.
1 1 1 1 1
2 2
1 Belgian Institute for Space Aeronomy (BIRA-IASB), Ringlaan 3, B-1180 Brussels, Belgium2 Department of Physics and Astronomy, University of Denver, Denver, CO 80208, USA
