The data-set comprises two main elements:

    A spreadsheet with the processing of each raw data file
    4 folders with raw data files in HDF5 format

The spread sheet contains the following columns

    filename of the raw data file
    timestamp of the raw data file
    speed of the motor in rpm
    speed of the motor in Hz
    Current of the moter (A)
    Voltage supply (V)
    surface motor temperature (ºC)
    ambient temperature (ºC)
    For each measured signal (Vibration, current, voltage) the vibration of the main harmonic (at the speed of the motor) and it's first 10 multiple.
    For each measured signal (Vibration, current, voltage) the vibration in 4 bands: 0-4kHz, 4kHz-8kHz, 8kHz-16kHz, 16kHz-26kHz

The raw data files in HDF5 format contains the instantaneous measured vibration (g), current (A) and voltage (volts) of the DC motor at 51.200 Hz.