Location History:
- Sylmar, CA (US) (1987)
- Northridge, CA (US) (1981 - 1989)
Company Filing History:
Years Active: 1981-1989
Title: The Innovative Contributions of Roger E. Nelson
Introduction
Roger E. Nelson is a notable inventor based in Northridge, California. He has made significant contributions to the field of measurement technology, holding three patents that showcase his innovative spirit and technical expertise. His work primarily focuses on methods for measuring conductance and optical transmissivity in various materials.
Latest Patents
One of Roger's latest patents is an "Apparatus and method for measuring conductance including a temperature." This invention features a meter designed for sheet conductance measurements that does not touch the conductive surface of a sample. The probe, equipped with a resonant tank coil, is positioned against a parallel supporting surface of the sample, which can be either flat or curved. The oscillator, which incorporates the tank coil, stabilizes amplitude in response to eddy current loading by the sample. Additionally, an electrostatic shield in a finger configuration prevents capacitive coupling between the tank coil and the sample while allowing magnetic coupling. The readout of sheet conductance is driven by the oscillator control, and direct current can be coupled to the tank coil for temperature control, preventing undesired resistance changes. Measurements can be made with the tank coil positioned up to 0.75 inches from the conductive surface of the sample.
Another significant patent is the "Optical disk transmission monitor for deposited films." This invention provides an optical transmission monitor that determines the optical transmissivity and thickness of films deposited on a substrate. The monitor substrate is designed as a rotating disk that is exposed to the deposition process. An optical system measures the transmissivity of the disk while obstructing a fixed segment, ensuring that the film thickness on the monitor disk is a known fraction of the film on the substrate being processed.
Career Highlights
Roger E. Nelson is currently associated with Sierracin Corporation, where he continues to innovate and develop new technologies. His work has had a profound impact on the field of measurement, enhancing the accuracy and efficiency of various processes.
Collaborations
Throughout his career, Roger has collaborated with notable colleagues, including Clyde L. Lucky and William E. Ward. These partnerships have contributed to the advancement of technology in their respective fields.
Conclusion
Roger E. Nelson's contributions to measurement technology through his innovative patents reflect his dedication to advancing the field. His work continues to influence the industry, showcasing the importance of creativity and collaboration in
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