Norbert Rau

Title: Norbert Rau: Innovator in Surface Measurement Technologies

Introduction

Norbert Rau is a distinguished inventor based in Kirchheim, Germany. He has made significant contributions to the field of surface measurement technologies, holding a total of 4 patents. His innovative methods have advanced the understanding and detection of surface imperfections in finely-machined workpieces.

Latest Patents

One of Rau's latest patents involves the measurement of small, periodic undulations in surfaces. In this method and apparatus, monochromatic coherent primary light is directed onto a workpiece surface at right angles to the expected periodic wave patterns. This technique creates a diffraction image of the waved surface structure in the secondary-light beam. The presence of two intensity maxima indicates a periodic wave pattern, which can be evaluated through inverse proportionality from the spacing of neighboring intensity maxima. The depth of the wave troughs is determined from the intensity of these maxima and the period. The intensity distribution in the diffraction image is subjected to an autocorrelation, allowing for the calculation of both the period and depth of the wave pattern.

Another notable patent focuses on the qualitative ascertainment of the position and severity of chatter marks in finely-machined surfaces. This method employs a high-resolution surface-measuring technique to generate a data record representing the actual microtopography of the workpiece surface. By filtering this data record, the circumferential position and degree of chatter marks can be identified. The resulting data can be further evaluated to form a characteristic assessment number for the chatter marks.

Career Highlights

Norbert Rau has had a successful career at Daimler Chrysler AG, where he has applied his expertise in surface measurement technologies. His work has not only contributed to the company's innovations but has also set new standards in the industry.

Collaborations

Throughout his career, Rau has collaborated with notable colleagues, including Michael Seibold and Robert Heilbronner. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Norbert Rau's contributions to surface measurement technologies have significantly impacted the field. His innovative patents and career at Daimler Chrysler AG highlight his dedication to advancing engineering practices. Rau's work continues to inspire future innovations in the industry.