LOW FREQUENCY PRIMARY VIBRATION CALIBRATION USING A MULTI-COMPONENT SHAKER |
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| N. Yan, L. Klaus, T. Bruns |
- Abstract:
- The multi-component vibration calibration device at PTB consists of a triaxial shaker which is suitable and convenient for calibrating multi-axial seismometers. Three laser vibrometers are furthermore utilised as references. The frequency range was further extended for a European research project. Instead of a closed-loop control system limiting the vibration frequency down to 0.4 Hz, a signal generator is now used to provide the excitation voltage to the amplifier of the shaker in open-loop mode. This excites the shaker yielding vibrations with significantly lower frequencies. The first test measurements with a seismometer were carried out. The results demonstrate that a calibration down to 10 mHz is easily achievable.
- Keywords:
- primary vibration calibration; seismometer; multi-component shaker; low frequency
- Download:
- IMEKO-TC22-2022-019.pdf
- DOI:
- 10.21014/tc22-2022.019
- 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