Karl-Heinz Wienand

Title: The Innovations of Karl-Heinz Wienand

Introduction

Karl-Heinz Wienand is a notable inventor based in Aschaffenburg, Germany. He has made significant contributions to the field of sensor technology, holding a total of five patents. His work primarily focuses on flow and temperature sensors, which are essential in various industrial applications.

Latest Patents

One of his latest patents is a flow sensor element and method of using the same. This innovative flow sensor element features at least one temperature-measuring element and at least one heating element, each equipped with platinum thin film resistors. These components are arranged on a carrier element made from a ceramic foil laminate or a multi-part ceramic component. The design includes electrical conductor paths and junction surfaces for effective electrical contact. This flow sensor is particularly useful for mass through-flow measurements of gaseous or liquid media, such as in exhaust gas pipes of internal combustion engines.

Another significant patent is a temperature sensor that incorporates a temperature-sensitive element on a surface of a monocrystalline substrate. The temperature-sensitive element is made of a platinum thin-film resistor produced as an epitaxial layer. The substrate can be either an electrically insulating material, like α-Al2O3 or MgO, or an electrically conducting material, such as silicon, with an insulating epitaxial layer. The platinum thin-film resistor is preferably deposited using advanced techniques like physical vapor deposition (PVD), chemical vapor deposition (CVD), or molecular beam epitaxy (MBE).

Career Highlights

Karl-Heinz Wienand has worked with prominent companies in the sensor technology sector, including Heraeus Sensor Technology GmbH and Heraeus Electro-Nite International N.V. His experience in these organizations has allowed him to develop and refine his innovative sensor designs.

Collaborations

Throughout his career, Wienand has collaborated with notable colleagues, including Karlheinz Ullrich and Matthias Muziol. These partnerships have contributed to the advancement of sensor technology and the successful development of his patented inventions.

Conclusion

Karl-Heinz Wienand's contributions to sensor technology through his innovative patents have significantly impacted various industries. His work continues to influence the development of advanced measurement systems, showcasing the importance of innovation in engineering.