Forschung / Research

For english see below

Der Lehrstuhl für Messtechnik bzw. die AG Messtechnik am ZeMA - Zentrum für Mechatronik und Automatisierungstechnik gGmbH präsentieren aktuelle Forschungsergebnise auf der Hannover Messe 2019 vom 1.-5. April.

Innovative Lösungen aus den Bereichen Gasmesstechnik, Signalverarbeitung/Maschinelles Lernen sowie nachhaltige Energienutzung werden präsentiert auf dem saarländischen Gemeinschaftsstand in der Forschungshalle 2, Stand B46.

Nähere Informationen entnehmen Sie bitte den folgenden Pressemitteilungen:

• Saarbrücker Forscher erleichtern durch Open Source-Software den Durchblick bei Massen-Sensordaten
• Gassensoren machen Schule: Schüler erforschen die Luftqualität
• Saarbrücker Sensorsystem misst Feuchtigkeit zuverlässig auch in heißen Öfen
• Heizen und Kühlen mit künstlichen Muskeln: Saar-Forscher entwickeln Klimagerät der Zukunft
• Brennstoffzellen-Auto: Forscher sichern Qualität und Reinheit des Wasserstoffs direkt beim Tanken

The Lab for Measurement Technology and the Measurement Science Goup at ZeMA (Centre for Mechatronics and Automation gGmbH) will present current research results at Hannover Fair 2019 from April 1 to 5.

Innovative solutions from our research areas gas measurement systems, signalprocessing/machine learning and sustainable energy use are presented at the Saarland booth in hall 2, stand B46.

For further information, please check the following press releases:

• Open source software helps researchers extract key insights from huge sensor datasets
• Novel sensor system improves reliability of high-temperature humidity measurements
• Saarbrücken research team uses artificial muscles to develop an air conditioner for the future
• Fuel cell vehicles: New sensor system safeguards fuel quality at hydrogen filling stations

Our research in the DFG priority programme Ferroic Cooling provided the cover art for the April 2018 issue of the MRS Bulletin with a focus on Caloric Effects in Ferroic Materials.

In the issue, our research was covered in the article "High-performance elastocaloric materials for the engineering of bulk- and micro-cooling devices" co-authored by Jan Frenzel, Gunther Eggeler (both Bochum), Eckhard Quandt (Kiel), Stefan Seelecke (Saarbrücken) and Manfred Kohl (Karlsruhe).

The cover art shows an image from Marvin Schmidt´s PhD thesis entitled: "Elastokalorisches Kühlen mit Ni-Ti-basierten Formgedächtnislegierungen: Thermodynamische Analyse, experimentelle Untersuchungen, Prozessoptimierung" with our elasto-caloric cooling demonstrator: a NiTi ribbon is used to transport heat from the heat source (blue) to the heat sink (red) to achieve a significant temperature difference after only a few cooling cycles.

Open Access Journal Atmosphere

View all details    -    Call for papers (pdf)

Deadline for manuscript submission: January 31, 2019.

Low-cost sensor technologies are gaining increasing interest for monitoring of air quality, both in the outside air and indoors. Sensor technologies can provide comprehensive information concerning a wide range of pollutants with high spatial and temporal resolution. They thereby offer the basis for novel environmental information services, i.e. green routes through cities for bikers and joggers. However, the data quality and reliability of these sensors as well as systematic integration with fixed monitoring stations and modeling approaches remain challenging.

The Special Issue will cover a range of topics addressing modern sensor technologies, test, validation and calibration as well as practical applications including multisensor integration, uses for model validation, data fusion and data assimilation, but also for supporting environmental information services and citizen science goals. We target high quality papers on the latest technological developments as well as examples of field studies using low-cost air pollution sensors of various types and for numerous applications in ambient as well as indoor environments.

Keywords

• Low-cost sensors
• System integration
• Data analysis
• Air pollution measurements
• Ambient air quality
• Exposure assessment
• Data fusion and data assimilation
• Air pollution mapping
• Environmental information services
• Citizen science

 For further information, please refer to the special issue homepage.

Guest editors

Our recent paper "Highly Sensitive and Selective VOC Sensor Systems Based on Semiconductor Gas Sensors: How to?" was selected as cover story for the March 2017 issue of the journal ENVIRONMENTS. The paper provides an overview over our work on low-cost VOC sensors for einvironmental monitoring and is available open access.

Smart microsensor systems for VOCs, including critical low-threshold pollutants such as benzene, can allow monitoring with high spatiotemporal resolution. A systematic approach for low-cost sensor systems is presented by combining dynamic operation for increased selectivity and sensitivity with a novel pre-concentrator concept. Advanced gas test systems allow testing and evaluation in realistic complex matrices, while a strategy is proposed for cost-efficient factory and on-site calibration.

The cover art shows the model for temperature cycled operation (TCO) of metal oxide gas sensors, our novel approach for integrating pre-concentration and sensors in a miniaturized package and the results obtained for benzene quantification using PLSR with an uncertainty of less than 1 ppb.

Full citation:

A. Schütze, T. Baur, M. Leidinger, W. Reimringer, R. Jung, T. Conrad, T. Sauerwald
Highly Sensitive and Selective VOC Sensor Systems Based on Semiconductor Gas Sensors: How to?
Environments 2017, 4, 20;
doi: 10.3390/environments4010020