论文信息 - Interferometric measurement of length scales at the National Bureau of Standards

Interferometric measurement of length scales at the National Bureau of Standards

Abstract The interferometric comparator for calibrating graduated length scales at the National Bureau of Standards is described. Its origins and early development are traced, and recent modernization and automation are detailed. A measurement assurance program is used to evaluate precision, accuracy and long term performance

J. S. Beers | Kang B. Lee

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