Vibrationdata 4 Analog-to-digital Conversion The accelerometers measure the data in analog form The accelerometer may have an integral mechanical lowpass filter Furthermore, the signal conditioning unit may have an analog lowpass filter Lowpass filtering of the analog signal is necessary to prevent aliasing Eventually, the data is passed through an analog-to-digital converter The proper lowpass frequency and sampling rate must be selected to ensure that the digitized data is accurate Accelerometer Signal Conditioner & Lowpass Filter Analog-to-Digital Converter
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