Key comparison in the field of acceleration on low intensity shock sensitivity

Abstract

This is the final report for CIPM key comparison CCAUV.V-K4 in the area of 'vibration' (quantity of acceleration). The aim of this comparison was to measure the voltage shock sensitivity of an accelerometer measuring chain including a standard accelerometer with a charge amplifier and the charge shock sensitivity of an accelerometer at different peak acceleration values with associated pulse durations. Nine Metrology Institutes from five RMOs have participated in the comparison with National Institute of Metrology, P.R. China as pilot lab and National Metrology Institute of Japan as co-pilot lab. For voltage shock sensitivity, all the participating laboratories provided their calibration results, which were all consistent within their declared expanded uncertainties. All participants contributed to the KCRVs calculated for six peak acceleration comparison values. For charge shock sensitivity, one participant failed to contribute to the calculation of the KCRV at 5 000 m/s2 and two participating laboratories were not consistent within their declared expanded uncertainties at a total of five peak acceleration comparison values. Further improvements of their calibration devices and uncertainty evaluations will provide more accurate and reliable measurement results in the future.KEY WORDS FOR SEARCHKey comparison; shock acceleration; low intensity shockMain textTo reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.The final report has been peer-reviewed and approved for publication by the CCAUV, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).