Optical Metrology In Length And Mechanical Standards

Optical Metrology in Length and Mechanical StandardsG.D. ChapmanDivision of Physics, National Research Council of CanadaOttawa, Ontario, Canada K1A OR6AbstractA review is presented of the introduction and development of optical techniques and devices in thebroad area of metrology in length and mechanical standards. Emphasis is placed upon those techniqueswhich have been made possible by the use of lasers, or which have substantially increased accuracy andreduced work loads on a routine basis. In particular, the use of optical fourier transform techniques inmetrology applied to disciplines as diverse as standards, engineering, plasma physics, and biology are