The definition of a sweep is a round trip from 5 Hz to either 2,000 or 2,400 Hz -- and back again to 5 Hz. The duration of a single sweep is 8 minutes and 30 seconds. It is important to point out that vibration testing in the MEMS-REAL study never managed to show any failure in the accelerometers produced by Murata. During the present study, no failure after vibrations testing was also recorded.
Third step: Mechanical shocks (response)
The first and second steps have been scaled so that 100% of the samples survived until this third step. The number of shocks necessary to reach total failure were known from the previous MEMS-REAL tests and used as comparison (Figure 6).