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Publication Citation: Comparison of NIST SI Force Scale to NPL SI Mass Scale

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Author(s): Christopher W. Jones; John A. Kramar; Stuart Davidson; Richard Leach; Jon R. Pratt;
Title: Comparison of NIST SI Force Scale to NPL SI Mass Scale
Published: October 19, 2008
Abstract: Small masses in the 1.0 mg to 0.1 mg range were developed and calibrated at NPL with traceability to the IPK. These masses were transported to NIST at Gaithersburg and used as deadweights on the NIST electrostatic force balance, to facilitate a mass-force scale comparison. A previously unaccounted systematic discrepancy of about 10 nN was discovered in the force measurements, correlated with the position of the mass lift system. With this correction, the measurements are in agreement. This work highlights the importance of calibration intercomparisons.
Conference: American Society for Precision Engineering 23rd Annual Meeting
Proceedings: Proceedings from the American Society for Precision Engineering, 2008
Pages: 4 pp.
Location: Portland, OR
Dates: October 19-24, 2008
Keywords: nanonewton; SI traceability; electrostatic force balance; small mass; small force
Research Areas: Characterization, Nanometrology, and Nanoscale Measurements
PDF version: PDF Document Click here to retrieve PDF version of paper (47KB)