Electrical acceleration sensors are faced with the problem of saturation effects.
After a load higher than the measurement range of the sensor, the output signal needs a certain time (up to a few seconds) until the sensor provides usable measurement data.
The picture shows the sensor signals of an optical sensor and an electrical sensor where a mechanical overload is applied to them.
After a mechanical overload (~150g) the optical sensor is not faced with the problem of saturation effects.
Immediately, the signal returns to the zero acceleration value. The electrical sensor has a saturation time of about five seconds in this experiment. In this time the sensor is not able to provide usable measurement data.