Empa Laboratory at the Top of Europe Chose Axetris MFCs

  Enquire / contact me

Axetris mass flow controllers (MFCs) have been employed by the Swiss Federal Laboratories for Materials Science and Technology (Empa) in its research laboratory at the Jungfraujoch High Altitude Research Station

The High Altitude Research Station, “Sphinx,” is located on the Jungfraujoch—in the Swiss Alps—at an altitude of 3580 msl.
The High Altitude Research Station, “Sphinx,” is located on the Jungfraujoch—in the Swiss Alps—at an altitude of 3580 msl.

Swiss Federal Laboratories for Materials Science and Technology (Empa) is using Axetris mass flow controllers (MFCs) in its research laboratory at the Jungfraujoch High Altitude Research Station, located at the “Top of Europe.” Axetris MFCs were chosen to fulfill the strict demands of repeatability and stability for enabling high-performance isotope tracking using laser spectroscopy.

CO2 isotope tracking to study climate change

The study of CO2 isotopes provides valuable information about the effects of CO2 generated due to human activities on climate change and global warming. Traditionally, various mass spectrometric techniques, such as Isotope Ratio Mass Spectrometry (IRMS), have been used to study CO2 isotopes in order to classify emission sources.

Since late 2008, Empa has been operating an isotope spectrometer, based on a quantum cascade laser (QCL), at the high-altitude research station located on Jungfraujoch in the Bernese Oberland region of Switzerland. The research station is situated on the famous Swiss peak at an altitude of 3580 msl, at the so-called “Sphinx Observatory.”

A variety of technical improvements for advancing measurement performance

Since 2007, Empa has worked continuously to develop and validate the innovative trace gas measurement setup. A number of improvements have been made over the years, so that the measurement performance of the setup could be drastically enhanced. Improvements in gas sampling and handling for the device resulted in better overall precision. Thermal control of sample and calibration gases played an important role in advancing the measurement performance.

One critical challenge to increase measurement performance was to maintain constant pressure in the reference and sample cells. Maintaining a constant pressure allows minimizing pressure effects, which may lead to spectroscopic noise. At the same time, a repeatable and stable gas flow control was required for purging the optics, and for stepwise dilution of reference gas samples to provide accurate values on internationally established scales for CO2 isotope ratios. Clearly, a mass flow control solution was required, which would not only deliver exceptionally high repeatability and dynamic range (for use with different flow rates), but also deliver long-term control stability under harsh environmental conditions.

Posted on November 2, 2015 - (296 views)
Related articles
3D-printed Humanoid Robot
Robot Table Tennis Tutor
Industrial Grade Edge Computing Device
A Convention for European AI-holics
Predictive Intelligence Platform
Record Sales Turnover for Resolve Optics Ltd
Unitronics Launches its New VFD Line
On the Road to Energy Sustainability
How to optimise gas engine performance
FIVE-YEAR SOLE SUPPLY AGREEMENT FOR EXXONMOBIL AND INFINIS
Mercury: Mobile, multi-protocol diagnostics for all environments
System-based High Precision Linkages
Hannay Works Here
Sure Signs of Excellence: Top Notch Products Offering Added Value
HOT! Innovative Infrared Technology
Temperature Sensors in Stock for Immediate Worldwide Despatch
FANDIS' FF Series of Filter Fans
Sensing Innovation in Process and Control
Innovative Systems Solutions Made by LAPP
SAFETY? That's our top Priority
Robot Table Tennis Tutor
On the Road to Energy Sustainability
Hexagon PPM and Ditio Established a Partnership to Foster Digital Transformation
Digitalization will be the Number 1 Trend at ADIPEC 2018
Monitoring receiver
3D Surround View System
Flow Measurement Device
PTFE Membrane Filters
Comprehensive Bonding Technologies
Stainless Drives Take Over at Fish Processing Plat