Information

Partner: Fraunhofer IISB
Testbed: Gas Sensor Testbed
Contact: Markus Pfeffer
Email: Markus.Pfeffer@iisb.fraunhofer.de

Gas Sensor Testbed – Gas Sensor Test Activities

One important objective during the development of gas sensors systems is the characterization and test of components and devices in laboratory and in the field. The gas sensor testbed allows the characterization of all type of gas sensors towards various target gases (e. g. volatile organic compounds – VOCs, etc.) in the relevant concentrations by using controlled gas mixtures at different temperature (T) and humidity (rH) levels.

Gas Sensor Testbed facts:

  • Special inner cabinet for gas sensor test applications
  • Installation and connection of the cabinet with a permeation furnace
  • Gas supply by permeation tubes
  • Oven temperature range (heat only) 30-150 °C
  • Typical concentration of 10 – 100 ppm (2500 cc/min – 250 cc/min)
  • Permeation tubes for over 500 chemicals available on the market

Special Inner Cabinet for Organic Compounds, Permeation Furnace

Gas sensor test chamber specifications

Gas Sensor Testbed – Gas sensor calibration and correlation measurement activities

In order to calibrate gas sensor systems and to perform correlation measurements the gas sensor testbed includes classical sampling methods and standard analytical methods. The sampling could be done in the lab as well as in the field (e.g. inner cities, etc.).

Gas Sensor Testbed facts:

  • Organics, anions, and cations
  • Sampling kits for various compounds available
  • Usable in various areas (e. g. laboratory, inner cities, closed environments, aircraft cabin, etc.)
  • Utilization of state-of-the-art analytical methods
VOC Anions and cations
(e. g. acids)
Sampling method
  • Passive sampling of VOCs
  • VOCs are being adsorbed by adsorbent tube


Passive sampling tubes
  • Impinger (e. g. NH3, Chloride, etc.)
  • Sorbent tubes (H2S, SO2/NO2, etc.)

Sorbent tubes
Analysis done by Thermodesorption Gaschromatography Mass Spectroscopy (TD-GC MS)

TD-GCMS system at Fraunhofer IISB

 Ion Chromatography (IC)

IC at Fraunhofer IISB
Detection Limits ppb 9 – 50 ppb

CONTACT

For more information, please contact:
https://www.iisb.fraunhofer.de/de/research_areas/technology_manufacturing/contamination_control.html
Markus Pfeffer
Fraunhofer IISB, Erlangen, Germany
Markus.Pfeffer@iisb.fraunhofer.de