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
More functionalities: Microstructuring large surfaces with a UV-laser system
05.07.2018 | Fraunhofer-Institut für Lasertechnik ILT
A factory to go
04.07.2018 | Fraunhofer Institute for Manufacturing Engineering and Automation IPA
New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference
Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...
Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
17.08.2018 | Event News
08.08.2018 | Event News
27.07.2018 | Event News
17.08.2018 | Physics and Astronomy
17.08.2018 | Information Technology
17.08.2018 | Life Sciences