Douglas C Stewart

Title: Innovations by Douglas C. Stewart

Introduction

Douglas C. Stewart is an accomplished inventor based in Mission, Kansas, known for his contributions to the field of photometric detection. With a total of 3 patents to his name, Stewart has made significant advancements in the technology used for detecting various substances.

Latest Patents

One of his latest patents is an igniter assembly designed for a pulsed flame photometric detector. This assembly features a filament made of a resistive heating wire, which is coiled and has a protective coating of an alloy of gold and palladium. The filament is also detachably connected to a cable and connector assembly, allowing it to connect to a power source in the detector.

Another notable patent is the self-tuning pulse flame photometric detector system. This system includes a method for tuning the detector by providing a carrier gas and at least one combustible fuel. It involves applying voltage to an igniter coil, verifying the pulsing frequency, and adjusting the gas flow to ensure proper ignition and combustion. The system also monitors sulfur emissions to evaluate performance.

Career Highlights

Douglas C. Stewart is associated with the Midwest Research Institute, where he has been instrumental in developing innovative technologies. His work has contributed to advancements in the field of photometric detection, enhancing the accuracy and efficiency of detection systems.

Collaborations

Stewart has collaborated with notable colleagues, including Keith D. Wilson and Plamen Doynov, to further his research and development efforts. Their combined expertise has led to significant innovations in their respective fields.

Conclusion

Douglas C. Stewart's contributions to the field of photometric detection through his patents and collaborations highlight his role as a leading inventor. His work continues to influence advancements in detection technology, showcasing the importance of innovation in this area.