Overview
ISO 16063-21:2003/Amd 2:2024 is an amendment to the international standard detailing methods for calibrating vibration and shock transducers. Specifically, it focuses on vibration calibration through comparison to a reference transducer. This amendment enhances clarity on the use of different calibration setups, reference transducers, and expands the applicable frequency range for calibration procedures.
The updated standard is critical for professionals involved in the precision calibration of vibration sensors and shock transducers, ensuring measurement accuracy and consistency across industries such as manufacturing, automotive, aerospace, and condition monitoring.
Key Topics
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Calibration by Comparison Method
The standard defines procedures for calibrating vibration transducers by directly comparing their output to a known reference transducer under controlled vibration conditions.
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Expanded Frequency Range
Calibration applicability now extends from as low as 0.01 Hz to as high as 30 kHz, broadening the operational bandwidth for transducer calibration beyond the previous 0.4 Hz to 10 kHz range.
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Reference Transducer Configurations
Several configurations are specified, including:
- Back-to-back mounting of transducers
- Use of fixtures containing the reference transducer
- Built-in reference transducers integrated within vibration exciters
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Setup Considerations
Recommendations include superimposing the seismic element centers on a common axis to minimize rocking effects and errors. For low frequency (