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The Candela and Photometric and Radiometric Measurements
The national measurement system for photometric and radiometric quantities is presently based upon techniques that make these quantities traceable to a high-accuracy cryogenic radiometer. The redefinition of the candela in 1979 provided the opportunity for national measurement laboratories to base t...
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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[Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology
2001
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4865290/ https://www.ncbi.nlm.nih.gov/pubmed/27500020 http://dx.doi.org/10.6028/jres.106.007 |