Stefan Wunderl

Title: Stefan Wunderl: Inventor of an Optical Method for Testing Material Joints

Introduction

Stefan Wunderl is an inventor associated with Vienna, Austria. His patent work addresses the testing of material joints and material compounds, using laser-generated acoustic waves and optical detection to assess the integrity of connected materials.

Latest Patents

The provided information lists one patent for Wunderl: Method and apparatus for testing material joints or material compounds.

The patented method tests an arrangement made of at least two components connected by a material joint. Laser pulses excite acoustic waves in at least one component, and a membrane-free optical microphone detects ultrasound waves in the adjacent gaseous layer. The detected waves are evaluated by measuring changes in acoustic pressure. The material joint is then assessed through mode conversion from a symmetrical mode with an out-of-plane deflection to an asymmetrical mode, and/or through acoustic standing waves at resonant frequencies.

Career Highlights

Wunderl’s listed patent reflects an approach to material testing that combines laser excitation, non-contact optical microphone detection, and analysis of acoustic behavior. The supplied information does not include further details about his career or professional history. His listed portfolio includes 1 patent.

Collaborations

The provided data names Christoph Weinmann and Wolfgang Rohringer as Wunderl’s coworkers. Their specific roles in the patent or related work are not specified.

Conclusion

Stefan Wunderl’s listed invention applies acoustic-wave analysis to evaluate material joints, offering a method based on laser excitation and membrane-free optical detection.