| Popis: |
Crash and pyro shock tests, which are used to improve or test technical safety structures, are represented by high g and high bandwidth excitations. Accelerometers used to record these tests must be able to closely capture data under extreme conditions without major distortions. Therefore, reliable calibration schemes have to be developed that allow for a sensor characterization over the whole measurement range. Existing approaches are either restricted in bandwidth or in amplitude. In the current paper, we present a methodology that can be applied to typical MEMS accelerometers based on air gap damping and that considerably improves sensor accuracy even at high g and high bandwidth ranges. |
