How do you calibrate an accelerometer?
- Position the accelerometer with the arrow pointing down for the first calibration point.
- Define this as −9.8 m/s2 or –1 g. Rotate the accelerometer so the arrow points up and use the reading for the second calibration point.
- Define this as +9.8 m/s2 or +1 g.
Why do accelerometers need calibration?
In conclusion, the decision to calibrate or not to calibrate the accelerometer is dependent on the signal of interest. For vibration monitoring and structural health monitoring applications that require monitoring absolute magnitude of vibration harmonic frequencies, additional calibration is required.
What does it mean to calibrate an accelerometer?
Accelerometers are inertial transducers that can sense mechanical motion and convert it into an electrical quantity that may be conveniently measured or recorded. ... Accurate accelerometer calibration is a way to provide physical meaning to this electrical output and it is a prerequisite for quality measurements.
