On the other hand, each oil change especially for large equipment is time consuming and expensive. Engineers at Saarland University and the new Center for Mechatronics and Automation (ZeMA) are developing a new method for determining the oil quality during normal operation. The measurement approach will indicate exactly when the oil should be changed. The development will be presented from April 19 to 23 at the Saarland research booth at the Hannover Industrial Trade Fair (Hall 2, Stand C 44).
Today additives are used to make lubricants for gears or hydraulic fluids more durable. However, when the additives are worn out by aging processes, the oil quality will deteriorate rapidly. "Due to this fact the oil is changed very early to prevent damaging the expensive equipment in many applications", Andreas Schütze, Professor for measurement technology at Saarland University, says. His team is currently developing a measurement cell together with academic and industrial partners, which can be mounted directly in hydraulic systems. Using an infrared light source based on silicon micromachining the oil is screened. An infrared detector determines which wavelengths pass through the fluid. The more the oil is aged the more the detected light pattern is changed. "This allows indicating the optimal time for the next oil change. In addition, we can also determine if the system was contaminated by water", the engineer explains.
The measurement cell can currently be used up to a pressure of 100 bar. In the future this range will be expanded to address further applications, e.g. in airplane hydraulics. Also the method will be applied to other fluids like alcohol or glycol. "Today laboratory analytical techniques are used to determine the aging of fluids. We are trying to measure the wear during normal operation", Andreas Schütze says. This is especially important for closed hydraulic systems , e.g. in airplanes. But also application areas like automotive could benefit, if the cell can be produced cheaply in high volumes. "Considering the high oil volumes, e.g. in large hydraulic installations, optimized oil change intervals are not only much more cost effective. The environment will also benefit, by less waste of oil. So the total demand of oil can be reduced and the consumption of this expensive resource is more economic", Schütze explains.
The method is developed in close cooperation with the new Center for Mechatronics and Automation (ZeMA) in Saarbrücken. The primary goal of ZeMA is application oriented research and the transfer of new methods from academia to industrial application. ZeMA works together with Saarland University, the University of Applied Sciences (HTW) as well with partners from industry. ZeMA addresses challenging projects with the goal of improving the efficiency of industrial processes.
For further questions:Prof. Dr. Andreas Schütze
Making lightweight construction suitable for series production
24.04.2017 | Laser Zentrum Hannover e.V.
It Takes Two: Structuring Metal Surfaces Efficiently with Lasers
15.03.2017 | Fraunhofer-Institut für Lasertechnik ILT
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
28.04.2017 | Event News
20.04.2017 | Event News
18.04.2017 | Event News
28.04.2017 | Medical Engineering
28.04.2017 | Earth Sciences
28.04.2017 | Life Sciences