Samrawit Hermosillo

Title: Samrawit Hermosillo: Innovator in Plasma Gun Diagnostics

Introduction

Samrawit Hermosillo is a notable inventor based in Santa Clara, California. She has made significant contributions to the field of plasma gun diagnostics, holding two patents that enhance the performance and reliability of thermal spray guns. Her innovative approaches have the potential to revolutionize the industry.

Latest Patents

Hermosillo's latest patents include "Plasma gun diagnostics using real time voltage monitoring" and "Method for detecting and diagnosing powder flow stability." The first patent focuses on a method and apparatus for monitoring and diagnosing gun performance. It determines proper gun operation and diagnoses potential causes for any abnormal operation. The voltage produced by the gun is sampled in real time, and the frequency spectrum is analyzed using Fast Fourier Transform (FFT). This process reduces the FFT pattern to a set of numerical values or a signature that can be compared to known signatures for both correct and abnormal operation. The method can also predict hardware life and aid in production scheduling and spare parts acquisition.

The second patent addresses powder flow stability. It involves detecting instabilities in powder flow from a feeder to a thermal spray gun using hose back pressure. By incorporating a pressure transducer in the powder hose line, back pressure can be measured in real time at a high sample rate. This allows for the detection of instability and aids in diagnosing its causes, including identifying periodic oscillations and detecting hose clogging or rupture conditions.

Career Highlights

Hermosillo works at Oerlikon Metco (US) Inc., where she applies her expertise in plasma technology. Her work has been instrumental in advancing the capabilities of thermal spray applications. She has demonstrated a commitment to innovation and excellence in her field.

Collaborations

Throughout her career, Hermosillo has collaborated with notable colleagues, including Ronald J. Molz and Jose Colmenares. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in technology.

Conclusion

Samrawit Hermosillo is a pioneering inventor whose work in plasma gun diagnostics is shaping the future of thermal spray technology. Her patents reflect her dedication to improving performance and reliability in the industry. Her contributions are invaluable, and her innovative spirit continues to inspire others in the field.