A5.4 - Simplified and Miniaturized Laser Doppler Distance Sensor for Dynamic Position and Shape Measurement at Rotating Objects

Thorsten Pfister, Lars Buettner & Jürgen Czarske
We present a simple and miniaturized laser Doppler distance sensor comprising only one single fanshaped interference fringe system for dynamic position and shape measurement of fast moving objects with micrometer precision. Due to its low complexity, it can be built very compact and cheap, which is crucial for many industrial applications. It will be shown theoretically as well as experimentally that its position uncertainty is in principle independent of the object velocity in contrast to...