ConSenses Accelerometer BA Series Manuel d'instructions de montage - Page 6
Parcourez en ligne ou téléchargez le pdf Manuel d'instructions de montage pour {nom_de_la_catégorie} ConSenses Accelerometer BA Series. ConSenses Accelerometer BA Series 14 pages.
Imprimer la page2. Operating Principle and Application Notes
The accelerometer's sensor is MEMS-based. MEMS stands for "Micro-Electro-Mechanical Systems". In this
case, the measurement principle is capacitive and offers the following advantages:
The basic sensor system (in contrast to piezo-based acceleration sensors) do not represent an uncon-
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trollable source of energy in the limit range. Thus, the system is very quickly ready for measurements
again - even in the event of unexpected shocks (within 500 µs)
Static measurements are possible, i.e., frequencies starting from 0 Hz can be evaluated.
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No additional measuring amplifier is required
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The basic MEMS sensor is electrically installed into the accelerometer as follows:
Under overload, for example, an accelerometer with a measuring range of ± 50 g exhibits the following signal
behavior:
As can be seen in Figure 2, the output signal (red, -40...60 g) follows the acceleration load (blue, -40...150 g)
until the measuring range limit is reached. The output signal is limited by the supply voltage and does not
increase further when the load is increased. Approximately 0.5 ms after exceeding the measuring range
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Figure 1: Block diagram
Figure 2: Signal behavior under overload (source: Analog Devices)
Accelerometer Assembly Instructions