The accelerometer can be calibrated by applying a harmonic forcing function to the apparatus to determine the relationship between the forcing function and the output of the accelerometer.
For the accelerometer, the voltage output is proportional to the velocity and is given by:
(1)
The accelerometer can be calibrated by comparing the voltage measured to the acceleration of the vibrating beam. The displacement versus time data that can be acquired with the strain gauges or the LVDT. The acceleration can then be compared with the voltage measured from the output of the accelerometer to find a calibration factor, Ca, for the velocimeter.