Vibration Analyzer

Vibration Analyzer Free App

Rated 3.66/5 (128) —  Free Android application by dattaraj

Advertisements

About Vibration Analyzer

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

How to Download / Install

Download and install Vibration Analyzer version Varies with device on your Android device!
Downloaded 10,000+ times, content rating: Everyone
Android package: com.dattaraj.vibmonitor, download Vibration Analyzer.apk

All Application Badges

Free
downl.
Bug
buster
For everyone
Android app

App History & Updates

What's Changed
- 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.
More downloads  Vibration Analyzer reached 10 000 - 50 000 downloads
More downloads  Vibration Analyzer reached 5 000 - 10 000 downloads
More downloads  Vibration Analyzer reached 1 000 - 5 000 downloads
Name changed  Name changed! FFT Vibration Analyzer now is known as Vibration Analyzer.

What are users saying about Vibration Analyzer

F70%
by F####:

Keeps crashing, the higher rate the sooner the crash

R70%
by R####:

Unstable and full screen video ads

Z70%
by Z####:

Amazing technology

Z70%
by Z####:

More ppwer to you

T70%
by T####:

Adds galore

N70%
by N####:

Excellent App

T70%
by T####:

Good

T70%
by T####:

Love love

E70%
by E####:

Need integration to velocity and displacement in frequency and time domain.

U70%
by U####:

Adds galore

Y70%
by Y####:

Does not scale, does not pick up transients reliably, shows false harmonics from clipped square wave

Y70%
by Y####:

Te app is good and quite stable. Though, it needs an exact digital output of the highest peak (or peaks) frequency in Hz.

X70%
by X####:

i would make it 200

Y70%
by Y####:

Thanks for this app which really helps in having a quick idea about the vibration patterns in the industrial equipments

Y70%
by Y####:

Much more useful than the generic sensor apps

Z70%
by Z####:

It actually works, but most of the stuff I put it on shows nothing. I was hoping that it could pick up the frequency of an object when I bang my hand on it, but it's not sensitive enough.

T70%
by T####:

Items overlap on display. Setting link is dead. Very limited frequency range.


Share The Word!


Rating Distribution

RATING
3.75
128 users

5

4

3

2

1