MEASUREMENT OF DYNAMIC ROCKING IN SINUSOIDAL CALIBRATION WITH AN ELECTRODYNAMIC SHAKER
A. Savarin, A. Chijioke
Abstract:
Rocking motion is often a significant source of uncertainty in sinusoidal calibrations of accelerometers and force transducers. We describe real-time measurements of rocking during sinusoidal excitation, performed at NIST. The measurement is contactless and can be performed simultaneously with the motion. We report rocking measurements for excitation frequencies up to 2 kHz. The results obtained have an absolute uncertainty (k = 2) in the range of 0.02 µrad to 3.3 µrad and allow error due to rocking motion to be largely corrected in axial acceleration measurement.
Keywords:
sinusoidal calibration; dynamic force; vibration; rocking; shaker
Download:
IMEKO-TC22-2022-141.pdf
DOI:
10.21014/tc22-2022.141
Event details
IMEKO TC:
TC22
Event name:
TC22 Conference 2022
Title:

5th TC22 Conference on Vibration Measurement (together with the 24th TC3 Conference on the Measurement of Force, Mass and Torque, the 14th TC5 Conference on the Measurement of Hardness, and the 6th TC16 Conference on Pressure and Vacuum Measurement)

Place:
Cavtat-Dubrovnik, CROATIA
Time:
11 October 2022 - 13 October 2022
Event details
IMEKO TC:
TC22
Event name:
TC22 Online Workshop 2023
Title:

IMEKO TC22 Online Workshop on Low-Frequency Vibration Metrology

Registration deadline: 1 April 2023

Dates and times: 4 to 5 April 2023, 12 PM to 2 PM CET

Brief description: Technical Committee 22 (TC22) “Vibration Measurement” of the International Measurement Confederation (IMEKO) (www.imeko.org) invites all interested persons to participate in its online workshop on low-frequency vibration metrology, to be held online on 4 to 5 April 2023, from 12 PM to 2 PM Central European Time each day. Low-frequency vibration traceability is a topic of focused interest and development around the world, see for example the Infra-AUV project of Euramet.

Place:
ONLINE,
Time:
04 April 2023 - 05 April 2023
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