2. Medium-frequency periodic calibration
In accelerometry, the mid-frequency range extends from 10 Hz to 10,000 Hz.
We describe the various calibration methods, first absolute, then relative, and present a rough outline of the uncertainty calculation for each.
2.1 Absolute calibration
A calibration is said to be absolute when the composite input variable, in this case acceleration, is calculated by measuring each of its primary components. In the case of acceleration, which is expressed in meters per square second, both length and time (frequency) are measured.
In these methods, the accelerometer is subjected to sinusoidal vibratory motion, the amplitude and frequency of which are measured. The ratio between the electrical output and the acceleration...
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Medium-frequency periodic calibration
Low-frequency periodic calibration
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