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Generic Vibration Criteria for Vibration-Sensitive Equipment

The vibration criterion (VC) curves, commonly used in the design of facilities which house vibration-sensitive instruments and tools, were developed by the author and his colleagues, in the early 80’s, published by SPIE in 1991 and by IEST in 1993. Each of the criterion curves A through E is associated with a “line width” or “detail size” which was an attempt by the authors to describe the capabilities of the tools with which each curve might be associated.  In the years since the curves were developed there have been substantial developments in tool design and isolation. In this paper the curves are reviewed in the context of present-day tools and processes. Changes are proposed where these might be justified.

Colin G. Gordon, “Generic Vibration Criteria for Vibration-Sensitive Equipment,” Proceedings of International Society for Optical Engineering (SPIE) Conference on Current Developments in Vibration Control for Optomechanical Systems Vol. 3786, Denver, CO, July 1999.