Joseph W Lee

Title: Joseph W Lee: Innovator in Gas Flow Measurement Technology

Introduction

Joseph W Lee is a notable inventor based in Williamsburg, VA (US). He has made significant contributions to the field of gas flow measurement technology. His innovative approach has led to the development of a unique measurement system that enhances the accuracy of velocity component analysis in gas flows.

Latest Patents

Joseph W Lee holds a patent for an "Interferometric Rayleigh scattering measurement system." This invention describes a method and apparatus for performing simultaneous multi-point measurements of multiple velocity components in a gas flow. The system directs pulses of laser light to a measurement region of unseeded gas, producing Rayleigh or Mie scattered light in various directions. The scattered light is collected and combined into a single collimated light beam. This light is then mixed with reference laser light before passing through a planar Fabry-Perot interferometer for spectral analysis. A high-sensitivity CCD camera images the interference fringe pattern, which contains vital spectral and spatial information. The interferogram processing software analyzes these profiles to determine the velocity components of the gas flow at multiple points. Additionally, the system recirculates the Rayleigh light rejected by the interferometer to improve accuracy, making it suitable for high-temperature measurements without increasing laser energy.

Career Highlights

Joseph W Lee is associated with the United States of America as represented by the Administrator of NASA. His work has been instrumental in advancing measurement techniques that are crucial for various applications in aerospace and other industries.

Collaborations

Joseph has collaborated with notable colleagues, including Daniel Bivolaru and Paul M Danehy. Their combined expertise has contributed to the success of his innovative projects.

Conclusion

Joseph W Lee's contributions to gas flow measurement technology exemplify the impact of innovative thinking in scientific research. His patented system represents a significant advancement in the field, showcasing the importance of precision in measuring gas dynamics.