ASPE College of Fellows

Award Description and Purpose

Election to the ASPE College of Fellows is a highly prestigious honor that is intended to recognize and honor those exceptional members of the Society who have made outstanding contributions to the art and practice of Precision Engineering through original research, significant innovations, education and outreach, or service to the profession. Eligibility criteria and guidelines on nominations are available here and new Fellows are announced each year at the Annual Meeting.

ASPE is proud to recognize the following individuals
as inaugural members of the College of Fellows:

Jon R. Pratt

Jon R. Pratt of the National Institute of Standards and Technology is recognized for his leadership and technical achievements related to establishing new fundamental standards for the measurement of force and mass; including the electronic kilogram that redefined the fundamental realization of mass from an artifact-based definition to one based on the Planck constant.




Theo A. M. Ruijl

Theo A. M. Ruijl of MI Partners is recognized for contributions to ultra-precision machine design. His work addresses numerous areas including thermal effects, high-precision metrology systems, control systems, damping techniques and system architecture in an industrial setting.




Tony L. Schmitz

Tony L. Schmitz of the University of Tennessee – Knoxville is recognized for advancements in the scientific understanding of the effects of structural dynamics on precision machining processes, advancements in displacement measuring interferometry, and numerous other topics critical to precision engineering.




Alexander H. Slocum

Alexander H. Slocum of the Massachusetts Institute of Technology is recognized for developing, teaching, and applying precision engineering principles to machine design, medical devices, and energy systems. His work has resulted in several hundred patents and technical publications, textbooks, and several generations of engineers trained in the principles and practice of precision engineering.