Vibrology

The Vibrology App

An App that uses the Accelerometer Sensor to monitor and record low frequency vibrations and shocks. The App provides real time graphical feedback. The app collects, analyzes and stores discrete snapshots containing 1024 data samples collected incrementally over a period of 1 to 10 seconds depending on the device.

The App has one simple screen with three graphical elements and a set of four buttons. The graphical elements include the Time Domain and the Frequency Domain graphs and a table of Peak Frequency values.

The Button Panel contains four buttons that can be used to flag User Defined Event Types. These event type values are integers from 1 to 4. Red is 1, Yellow is 2, blue is 3 and green is 4.

At the top of the screen is the Data Mine Key. Each snapshot includes the vibration and shock data along with the GPS coordinates at the time of the snapshot. Additionally, the The Speed, Date and Time are recorded. Each snapshot is stored in a database at the JamworksPro Data Center. Snapshots can be queried in the Vibrology Data Mine based on this Data Mine Key.

The App displays Time Domain and Frequency Domain graphs for each sample set. The Time Domain shows the plot generated by the 1024 sample of vibration and motion applied to the accelerometer.

The Frequency Domain graph displays the magnitude of each frequency between 1 and 255 hz. The magnitude values are in m/s^2. Acceleration Forces are measured along the X, Y and Z axis' of the device.

The Frequency Domain graph is generated by applying the Time Domain samples to the Fast Fourier Transform. The Peak magnitudes and the associated frequency for each of the three axis' are displayed in a table below the graphs.

The Frequency Domain data for each snapshot is stored in the Vibrology Database in the JamworksPro Data Center.

This information is uniquely identified with a pass key which is generated the first time the app is run. This key allows for the retrieval of all the stored data from the database at https://data.vibrology.app