The specific task of this comparison is the measurement of the magnitude of the sensitivity of two single-ended accelerometers in medium frequency domain (10 to 10 000 Hz). This comparison will be linked to the key comparison EURAMET.AUV.V-K5 which is under progress. The sensitivity shall be calculated as the ratio of the amplitude of the output of the accelerometer to the amplitude of the acceleration at its reference surface with secondary means in accordance with ISO 16063-21:2003 "Methods for the calibration of vibration and shock transducers - Part 21: Vibration calibration by comparison to a reference transducer".
Progress Report 2020-08-11
October 2019: Initial measurements of the transfer standards completed at BEV
November 2019: Standards sent to IPQ, Portugal and VTT, Finland
February 2020: Remeasurement of the transfer standards at BEV
February 2020: Standards sent to CMI, Czech Republic and BIM, Bulgaria
May 2020 – June 2020: No measurements due to Corona lockdown
July 2020: Remeasurement of the transfer standards at BEV
August 2020: Standards sent to METAS, Switzerland
So far, at least two of the three transfer standards show sufficient stability for the comparison.