| Laureate Professor Dr. Jürgen Czarske, Dr. Lars Büttner and Dr. Thorsten Pfister, Technische Universität Dresden, Germany Title of work „Laser Doppler Distance Sensor and its Applications ” | |||||||||||
| Professor Czarske and two members of his scientific staff, Dr. Lars Büttner and Dr. Thorsten Pfister at the Technical University at Dresden developed a new kind of sensor. Even though it’s based on the since long well known Doppler Effect it surprisingly allows for completely new applications in measurement technology.
Every one knows the Doppler Effect by way of sirens. The tone of a fire truck’s siren changes at the moment it passes by. A well known application is the traffic speed control using radar systems. | ||||||||||
| Same principles underlie the so called laser doppler detectors. But the new device developed by Czarske does not only measure the speed but also the exact distance. Most fascinating is the fact, that the accuracy of the distance measurement is not reduced with increasing speed of the measured object. Applications of the new sensor are the flow profile measurement in gas pipes as well as determining the absolute flow-rate of liquids through micro channels for dosing of medication. And it can also be used for fast measurements of geometries and small gaps such as the free space between the tips of turbine blades and the housing. | |||||||||||
The artifice is the simultaneous measurement of different laser beams that cross each other at the point of interest. Using a special illumination pattern and an intelligent evaluation of the combined data the researchers yield as a result the speed and the distance with an accuracy independent from the speed of the moving object.
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| Czarske and his team did not stop with the success in research but move ahead to the next step by developing a prototype together with an industrial partner. They target at a commercial product of their invention. | |||||||||||
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