Hans-Rudolf Derrer

Title: The Innovations of Hans-Rudolf Derrer

Introduction

Hans-Rudolf Derrer is a notable inventor based in Rheinau, Switzerland. He has made significant contributions to the field of engineering, particularly in the development of innovative measurement technologies. His work has led to the creation of a unique piezoelectric strain transducer, which has applications in monitoring and controlling machines subjected to cyclic loads.

Latest Patents

Derrer holds a patent for a piezoelectric strain/force transducer. This invention is designed to be attached to a test specimen or machine part using a single locking screw. The transducer features two bearing surfaces that bear frictionally on the surface of the machine part. When the length of the machine part changes, the spacing between these surfaces also changes. This mechanism allows a resilient member to be tensioned, which can be adapted to the desired sensitivity of the gauge. The piezoelectric plates within the transducer are subjected to a shearing force, generating a piezoelectric charge that measures the strain or mechanical stress of the machine part.

Career Highlights

Derrer's career has been marked by his dedication to advancing measurement technologies. His work at Kistler Instruments AG has positioned him as a key figure in the development of innovative solutions for industrial applications. His expertise in piezoelectric technology has contributed to the company's reputation for precision measurement instruments.

Collaborations

Derrer has collaborated with notable colleagues such as Peter Wolfer and Max Vollenweider. These partnerships have fostered an environment of innovation and have led to the successful development of advanced measurement technologies.

Conclusion

Hans-Rudolf Derrer is a distinguished inventor whose work in piezoelectric strain transducers has made a significant impact in engineering. His contributions continue to influence the field and enhance the capabilities of measurement technologies.