David R Van Hare

Title: David R Van Hare: Innovator in Spectrophotometric Measurements

Introduction

David R Van Hare is a notable inventor based in Aiken, SC (US). He has made significant contributions to the field of chemical measurement through his innovative patents. With a total of 2 patents, Van Hare has developed methods that enhance the accuracy and efficiency of spectrophotometric measurements.

Latest Patents

One of his latest patents is titled "Self-referencing spectrophotometric measurements." This method involves measuring the concentration of a chemical substance by placing a sample of a photoreactive substance between a light source and a spectrophotometer. The process includes obtaining an absorption spectrum using a fixed amount of light, followed by a second absorption spectrum after a short interval. By comparing these two spectra, the concentration of the chemical substance can be determined. If the substance is not photoreactive, a photoreactive mixture can be created with a unique photoreactive dye. Alternatively, an optically transparent substrate can absorb the substance or the dye/substance mixture.

Another significant patent is the "On-line process control monitoring system." This fiber-optic based apparatus monitors the concentration of a chemical substance at multiple locations within a chemical processing system. It consists of several probes, each located at different points in the system, a light source, optic fibers for light transmission, a multiplexer for switching light between probes, and a diode array spectrophotometer for spectrum production. A computer analyzes the spectra generated, allowing for real-time monitoring and validation of data through standard and reference cells.

Career Highlights

Throughout his career, David R Van Hare has worked with esteemed organizations, including the United States of America as represented by the Department of Energy. His work has contributed to advancements in chemical processing and measurement technologies.

Collaborations

Van Hare has collaborated with notable professionals in his field, including Patrick E O'Rourke and William S Prather. Their combined expertise has furthered the development of innovative solutions in spectrophotometry.

Conclusion

David R Van Hare's contributions to the field of spectrophotometric measurements demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of chemical processes and a dedication to improving measurement techniques.