David J Pratt

Title: The Innovations of David J Pratt

Introduction

David J Pratt is a notable inventor based in Suffolk, GB, recognized for his contributions to optical sensing technology. With a total of four patents to his name, he has made significant advancements in the field of optical time domain reflectometry.

Latest Patents

Among his latest patents is the "Multi-wavelength time domain reflectometer." This invention features an optical time domain reflectometry system that utilizes laser level reference signals derived from the outputs of various laser sources. These signals are directed into a single receiver, which captures the back-scattered light along an optical fiber. This innovative design allows for continuous calibration based on the relative intensities of optical signals at different frequencies, ensuring accurate measurements of temperature and other parameters.

Another significant patent is the "Optical sensing arrangements with wavelength and time-displacement." This arrangement employs two laser sources to produce simultaneous optical pulse signals of different wavelengths. These signals are transmitted over multiple discrete optical fiber paths to sensors. The time-displaced return signals are processed by a single receiver, which compensates for unknown losses in the system, thereby enhancing the accuracy of measurements at the sensor locations.

Career Highlights

David J Pratt is currently associated with Plessey Overseas Limited, where he continues to innovate and develop cutting-edge technologies. His work has positioned him as a key figure in the field of optical sensing.

Collaborations

Throughout his career, David has collaborated with esteemed colleagues such as John P Dakin and Christopher A Wade, contributing to the advancement of optical technologies.

Conclusion

David J Pratt's contributions to optical sensing and reflectometry demonstrate his commitment to innovation and excellence in engineering. His patents reflect a deep understanding of complex optical systems and their applications in real-world scenarios.