Toward the SI system based on fundamental constants: Weighing the electron

IEEE Transactions on Instrumentation and Measurement

Volumn 56, Issue 2, 2007, Pages 646-650

  Williams, Edwin R ^a,b  

^a Technology Administration   (United States)

^b NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY   (United States)

Author keywords

Avogadro constant; Elementary charge; Fundamental constants; International System of Units (SI); Kilogram; Planck constant; Watt balance

Indexed keywords

ELECTRONS; ELEMENTARY PARTICLES; MEASUREMENT THEORY;

AVOGADRO CONSTANT; BOLTZMANN CONSTANT; FUNDAMENTAL CONSTANTS; PHYSICAL CONSTANT; PLANCK CONSTANT;

METRIC SYSTEM;

EID: 34047212253     PISSN: 00189456     EISSN: None     Source Type: Journal    
DOI: 10.1109/TIM.2007.890591     Document Type: Conference Paper

References (13)

1. I. M. Mills, P. J. Mohr, T. J. Quinn, B. N. Taylor, and E. R. Williams, "Redefinition for the kilogram: A decision whose time has come," Metrologia, vol. 42, no. 1, pp. 71-80, Jan. 2005.
2. R. S. Davis, "Possible new definitions of the kilogram," Philos. Trans. Roy. Soc. London A, Math. Phys. Sci., vol. 363, no. 1834, pp. 2249-2264, Sep. 2005.
3. J. L. Flowers and B. W. Petley, "The kilogram redefinition - An interim solution," Metrologia, vol. 42, no. 5, pp. L31-L34, Oct. 2005.
4. I. M. Mills, P. J. Mohr, T. J. Quinn, B. N. Taylor, and E. R. Williams, "Redefinition of the kilogram, ampere, Kelvin, and mole: A proposed approach to implementing CIPM recommendation 1 (CI-2005)," Metrologia, vol. 43, no. 3, pp. 227-246, Jun. 2006.
5. K. Fujii et al., "Present state of the Avogadro constant determination from silicon crystals with natural isotopic compositions," IEEE Trans. Instrum. Meas., vol. 54, no. 2, pp. 854-859, Apr. 2005.
6. M. Glaeser, "Tracing the atomic mass unit to the kilogram by ion accumulation," Metrologia, vol. 40, no. 6, pp. 376-386, Nov. 2003.
7. B. Kibble, "A measurement of the gyromagnetic ratio of the proton by strong field method," in Atomic Masses and Fundamental Constants, vol. 5, J. H. Sanders and A. H. Wapstra, Eds. New York: Plenum, 1976, pp. 545-551.
8. R. Steiner, E. Williams, D. Newell, and R. Liu, "Toward an electronic kilogram: An improved measurement of the Planck constant and electron mass," Metrologia, vol. 42, no. 5, pp. 431-441, Oct. 2005.
9. I. A. Robinson and B. P. Kibble, "The NPL watt balance: Modifications and new measurement," in Proc. Conf. Precision Electromagn. Meas. Dig., 2006, pp. 60-61. ISBN 0-.
10. R. Steiner et al., "Uncertainty Improvements of the NIST electronic kilogram," IEEE Trans. Instrum. Meas., vol. 56, no. 2, pp. 592-596, Apr. 2007.
11. A. Eichenberger, B. Jeckelmann, and P. Richard, "Tracing Planck's constant to the kilogram by electromechanical methods," Metrologia, vol. 40, no. 6, pp. 356-365, Nov. 2003.
12. G. Genevès et al., "The BNM watt balance project," IEEE Trans. Instrum. Meas., vol. 54, no. 2, pp. 850-853, Apr. 2005.
13. A. Picard, M. Stock, H. Fang, T. J. Witt, and D. Reymann, "The BIPM watt balance," IEEE Trans. Instrum. Meas., vol. 56, no. 2, pp. 538-542, Apr. 2007.