Donald W Nelson

Title: The Innovative Contributions of Donald W. Nelson

Donald W. Nelson is a notable inventor based in Voorhees, NJ (US), recognized for his significant contributions to the field of viscoelasticity measurement. With a total of five patents to his name, Nelson has developed innovative technologies that enhance laboratory measurements and process control.

Latest Patents

Among his latest patents is an "Apparatus and method for determining the viscoelasticity of liquids." This invention features a rheometer designed to assess the viscoelasticity of a liquid by analyzing the mechanical impedance presented to an oscillating surface. The device determines the incremental power required to maintain a fixed amplitude of oscillation when immersed in the liquid. Additionally, it measures the differential shift in oscillation frequency due to immersion, allowing for a comprehensive understanding of the liquid's viscoelastic properties. Applications of this technology span laboratory measurements and process control.

Another significant patent is the "Rotational vibratory viscometer transducer and circuit." This invention involves a torsional mode rotational vibratory viscometer that includes an elastic hollow metal sheath and a rigid rod. The device is designed to measure the viscosity-density product of a fluid by determining the power supplied to a drive coil when the immersible tip is submerged in the fluid. The innovative circuitry ensures accurate measurements by maintaining a constant amplitude of oscillation.

Career Highlights

Donald W. Nelson is currently associated with the National Metal and Refining Company, Ltd., where he continues to apply his expertise in the field of viscoelasticity. His work has significantly impacted the development of measurement technologies.

Collaborations

Throughout his career, Nelson has collaborated with notable colleagues, including Frank J. Matusik and J. Vincent Fitzgerald. These collaborations have contributed to the advancement of his innovative projects.

Conclusion

In summary, Donald W. Nelson's contributions to the field of viscoelasticity measurement through his patents and collaborative efforts have established him as a prominent figure in innovation. His work continues to influence laboratory practices and process control methodologies.