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.
How often should accelerometers be calibrated?
2. Accelerometer Calibration. Accelerometers must be calibrated yearly to ensure the accuracy of the data they are collecting. Calibrations are generally acceptable for a one-year term then they must be calibrated again.
