Hannover Messe 2017

•••26••• Innovationen Noch feiner schnuppern Gas-Analysegeräte entdecken winzigste Schadstoffe Mit den Methoden von Saarbrü- cker Messtechnikern erschnüf- feln transportable Gas-Chroma- togr aphen auch winzigste Spuren: Schon ein Billionstel Gramm eines Schadstoffes in ei- nem Gas-Gemisch genügt den Sensorsystemen, die Professor Andreas Schütze mit seinem Team an der Universität des Saar- landes entwickelt. Die Forscher sind darauf spezialisiert, die künstlichen Sinnesorgane immer feinfühliger, genauer und emp- findlicher schnuppern zu lassen. Jetzt verbessern die Ingenieure die Detektoren für Gas-Chroma- tographen mit ihrer Technik. Vor allem mobile Geräte können hier- von profitieren. „Unser Verfah- ren macht es möglich, kurze Gas- Pulse hochgenau zu detektieren und kleinste Gas-Mengen selektiv auf die in ihnen enthaltenen Stof- fe zu analysieren“, erklärt Tilman Sauerwald, Habilitand am Lehr- stuhl für Messtechnik. Ihr Verfahren zeigen die Ingeni- eure auf der Hannover Messe am saarländischen Forschungsstand in Halle 2, Stand B46. The radar module is based on indium gallium arsenide semiconductor technology. It is ex- tremely light and compact thanks to its monolithically integrated construction, in which different components and functions are integrated into a single chip. Photo: Fraunhofer IAF With even greater accuracy Radar scanner to detect defects in the material composition of the wind turbine blades R otor blades are the centerpiece of a wind turbine, with their production and maintenance subject to rigorous test- ing procedures. Thanks to a radar scanner from the Fraunhofer Institute for Applied Solid State Physics IAF, defects in the mate- rial composition of the wind turbine blades can now be detected with far greater ac- curacy and visualized in a cross-sectional view, thereby saving costs in production and operation. The Fraunhofer (IAF) will be introducing the material scanner for testing wind turbine blades at the Baden-Württem- berg shared booth at the Hannover Messe, hall 17, booth B76. The radar scanner on dis- play will be conducting tests of different composite plastics and demonstrating the potential for innovative radar technology. The rotors, which are usually equipped with three blades, are the central component of all wind turbines. They convert wind into rotational energy, and then into electric- ity. Much like the wings on an aircraft, the blades are subjected to enormous external loads and therefore must be designed to be extremely robust. Modern wind turbine blades are mainly constructed from glass fiber and carbon fiber reinforced plastics (GFRP / CFRP), so that they can elastically absorb the wind energy from strong gusts without breaking. For a single blade, up to 100 sheets of glass fiber webbing are lay- ered on top of each other, shaped and then glued together with epoxy resin. Quality control is essential at this stage in produc- tion: “The difficulty lies in layering the glass fiber sheets flat before they are glued, without creating undulations and folds, and avoiding the formation of lumps of resin or sections of laminate which don’t set when applying the epoxy,” explains Dr. Axel Hüls- mann, coordinator of the radar project and group manager of sensor systems at the Fraunhofer IAF. These kinds of defects, as well as delaminations or fractures, can be identified on a large-scale using infra- red thermography. “Our material scanner enables defects to be identified with even greater accuracy, as depth resolution is al- so possible with radar technology – even in places where ultrasound methods fail,” says Hülsmann. The radar scanner enables defects in the material composition of the wind turbine blades to be detected with greater accuracy. Photo: Rike / pixelio.de Anzeige Augmented Reality Unterstützung für Schweißer Das Software Competence Center Hagenberg kann mit benutzerzen- triertem Software Engineering zielgerichtet für konkrete Arbeits- abläufe die optimale Interaktion entwickeln. Ein Ergebnis dieser Vorgehensweise ist die Verwen- dung von Augmented Reality für Schweißaufgaben. Halle 2 • A44 / www.scch.at Unser Zeichen für Qualität Rohrverbindungstechnik von STAUFF NEU! STAUFF Connect Erfahren Sie mehr unter www.stauffconnect.com oder auf der Hannover Messe Halle 21 /Stand F27 vom 24. – 28. April 2017 in Hannover