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Title: Enhancing Secondary Force Transfer Standard Performance
Author: Michael Tovey
Source: 2004 Measurement Science Conference
Year Published: 2004
Abstract: Primary standard force calibrations are performed by dead weights in the earths gravity field. Because of the expense of dead weight test facilities, particularly for high capacity requirements, many force calibrations are performed using secondary standards such as strain gage based force transducers (load cells) and proving rings, which are in turn calibrated by primary standards. The performance of strain gage based force transducers as secondary transfer standards has continued to improve. A summary measurement uncertainty analysis for a secondary standard force calibration is presented in order to identify the more significant factors contributing to measurement uncertainties. These factors are discussed with a view of achieving lower uncertainties in the future.

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