Josef Pörnbacher

Title: Josef Pörnbacher and Acoustic Testing of Material Joints

Introduction

Josef Pörnbacher is an inventor associated with Vienna, Austria. His patent work addresses the testing of material joints and compounds using laser-generated acoustic waves and optical detection.

Latest Patents

Pörnbacher is associated with 1 patent: “Method and apparatus for testing material joints or material compounds.” The method begins with an arrangement 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 determining their acoustic pressure variation. 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 in the joint.

Career Highlights

The patent describes a non-contact approach to evaluating material joints and compounds. By combining laser excitation with optical microphone detection, the method uses acoustic responses to assess the joint.

Collaborations

Georg Kaniak and Balthasar Fischer are identified as Pörnbacher’s coworkers.

Conclusion

Josef Pörnbacher’s patent focuses on acoustic methods for testing material joints, using laser-generated waves and optical detection to evaluate their properties.