Vibration Analyzer - Get APK
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Publisher Description
This is an Android app that leverages the Accelerometer sensor that is built into modern SmartPhones. This sensor monitors acceleration along X, Y and Z axes. The App shows a plot of acceleration with time for the selected axis. It allows to select the axis for consideration.
A time domain plot of acceleration gives limited information. It can help detect motion in particular direction and measure amount of motion, velocity, etc. However when there is repeated motion or vibration we see a definite pattern in the time plot. More details can be obtained using Fourier Analysis using a technique called Discrete Fourier Transform (DFT). DFT converts the signal from time to frequency domain providing the frequencies in which the energy of the signal is distributed.
The app provides a frequency plot for the DFT using an algorithm called Fast Fourier Transform (FFT). The FFT is an algorithm for obtaining the DFT but uses optimizations like recursion which makes it much faster to obtain the DFT.
As a practical example, you can keep the SmartPhone on a motor casing with Z axis selected. As the motor runs, the whole body undergoes vibration. Assume the motor runs at 600rpm (10Hz). So if you have placed the SmartPhone correctly you should see the frequency peaking near 10Hz. If there is misalignment or imbalance there will be some other frequencies which will produce noise.
In industrial machines, accelerometers are mounted appropriately on the machine to monitor axial and radial vibrations and using frequency analysis - frequencies of interest are identified which can show signatures of imbalance, misalignment or even cracks.
You can use this app to monitor Vibrations in any machine on which you can safely mount your SmartPhone. The app will monitor vibrations and plot Time and Frequency domain plots. Time domain plots will help understand the physical phenomenon. However frequency plot developed from FFT analysis will give you the frequencies within the vibration signal. Typically if a machine runs at 6000rpm or 100Hz, you should see a dominant 100Hz frequency reading.
This is a general purpose app. It can be applied to different domains to perform vibration analysis. Lot depends on how you place the phone as close as possible on the machine. Would love to hear if you found this beneficial. Write to me at: dattarajrao@yahoo.com
About Vibration Analyzer
The company that develops Vibration Analyzer is dattaraj. The latest version released by its developer is 1.0 .
To install Vibration Analyzer on your Android device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2014-10-29 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Vibration Analyzer as malware as malware if the download link to com.dattaraj.vibmonitor is broken.
How to install Vibration Analyzer on your Android device:
- Click on the Continue To App button on our website. This will redirect you to Google Play.
- Once the Vibration Analyzer is shown in the Google Play listing of your Android device, you can start its download and installation. Tap on the Install button located below the search bar and to the right of the app icon.
- A pop-up window with the permissions required by Vibration Analyzer will be shown. Click on Accept to continue the process.
- Vibration Analyzer will be downloaded onto your device, displaying a progress. Once the download completes, the installation will start and you'll get a notification after the installation is finished.
Program Details
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Version History
version
posted on 2014-10-29
- Improved frequency chart with scaling and labelled values. Response to online feedback. (Thanks!),- 5 second test that waits for approx 5 seconds and captures a set of data. A frequency analysis is done on this and compared to a benchmark. This feature can be used to define new benchmark (reference for vibration) and then compare other products to see if there are major deviations.,- Support for portrait or landscape layouts. So you can optimally use the screen space.
Disclaimer
External Download
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