Fresh vegetables from the field must be cleaned quickly in large quantities, packaged and transported to the supermarket. At first a lot of dirt sticks on the carrots. They are cleaned in water baths and then brushed clean with mechanical rotational brushes. They are then weighed accurately and packed in plastic bags.
Compact ultrasonic sensors of the UN series from Waycon Positionsmesstechnik can be used here for two purposes. First, the level of the water bath is controlled by a sensor. Before the brushing machine two UN sensors are mounted with synchronization. They measure the level of the feed hopper and control the conveyor belt in a way that the brushing machine is always properly loaded. The environment is very rough. A lot of water, soil and carrot skin is splashing around. The UN sensors are IP67 waterproof and mechanically very robust. They work even with heavily polluted diaphragm.The outstanding feature of the UN series is its high acoustic power combined with small sensor size. This is achieved with new optimized transducers, working at high electrical voltages. Thus also small, moving and poorly reflecting objects can be safely detected. Moreover the sensors work also under high contamination. With a length of
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
There are currently great hopes for solid-state batteries. They contain no liquid parts that could leak or catch fire. For this reason, they do not require cooling and are considered to be much safer, more reliable, and longer lasting than traditional lithium-ion batteries. Jülich scientists have now introduced a new concept that allows currents up to ten times greater during charging and discharging than previously described in the literature. The improvement was achieved by a “clever” choice of materials with a focus on consistently good compatibility. All components were made from phosphate compounds, which are well matched both chemically and mechanically.
The low current is considered one of the biggest hurdles in the development of solid-state batteries. It is the reason why the batteries take a relatively long...
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....
17.08.2018 | Event News
08.08.2018 | Event News
27.07.2018 | Event News
20.08.2018 | Information Technology
20.08.2018 | Life Sciences
20.08.2018 | Information Technology