期刊
METROLOGIA
卷 53, 期 3, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0026-1394/53/3/986
关键词
primary accelerometer calibration; flatness correction; low frequency vibration
This paper describes the influence of a constant curvature of the shaker's air bearing guidance on a low frequency primary accelerometer calibration. Based on the mathematical model, three different methods are developed that allow a quantitative evaluation of this disturbing effect and thus the correction of the resulting systematic deviation. All three methods are applied to the example of a primary low frequency accelerometer calibration performed at PTB, and the results are given in comparison to the original uncorrected magnitude of sensitivity results.
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