The 40th GGMT meeting was the perfect opportunity to sit down with a few current and future Spectronus users to discuss the latest Spectronus improvements and provide a short introduction of the tower measurements performed in Lamont, USA.
Improvements in the measurement cell of the Spectronus are the results of a joined effort between the ECN (Netherlands), the University of Wollongong (Australia) and Ecotech. Alex Vermeulen (ECN, now ICOS) and David Griffith showed a few laboratory results.
In order to obtain a precise and accurate concentration, the sample temperature should be controlled and measured as accurately as possible. Previously, the measurement cell enclosure was maintained at 30°C by means of a fan and a peltier element but no active heating of the measurement cell itself was possible since it was made out of glass. With the latest replacement of the measurement cell from glass to aluminium, we now can actively heat the cell and therefore control the sample temperature to 35°C.
Alex showed us the very first results performed on the ECN/Ecotech prototype while David went through the latest stability and precision results performed with the nearproduction cell (UOW/Ecotech cell). The two modes, flowing and static sample, were under investigations and the results look great with no difference between the two. The design in now ready for production and Ecotech is integrating the PID control to the Spectronus software.
David also showed great fluxes data that Sebastien Biraud (Lawrence Berkeley National Laboratory) installed at Lamont, USA. I was personally stoked by the stability and the reliability of the instrument now installed for over a year.
To obtain the presentations with more details contact marie.laborde@ecotech.com.
Overall, and once again, a great day in a great spot!
Thank you all for coming.
Marie
