Interferometric measurement of length scales at the National Bureau of Standards |
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| Authors: | J.S. Beers Kang B. Lee |
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| Affiliation: | a National Bureau of Standards, Washington, DC 20234, USA |
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| 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 |
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| Keywords: | Interferometry length measurement standard measures |
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