I would like to know how I can measure the vibration coming from my hand shaking something. My experiment is like this. I put a ball made of strong glass into a closed empty box made of strong glass too. The box is small enough for me to be held with one hand. I have to shake the box with one hand so that the ball is bouncing inside and produce sound.

How do I measure how often (or how intense?) the sound comes out in one minute? This definitely cannot be done just by ear. I know this is a matter of vibration as the slower I shake the less intense the sound is produced. What tool must I use?

Knowing this will help my project a lot as I plan to include it in a competition. I searched in google/youtube and found something called vibrameter I believe? Or vibratometer? I forget but I couldn't understand how to apply it in my case. Also, my physics memory cannot seem to recall any tool useful for this.


The simplest way to measure the frequency of vibrations and get an idea of relative intensity is to use Audacity or similar software and record/display the sound using a microphone built into a computer or a smartphone.

  • $\begingroup$ Thanks Sir. I just heard about sound pressure level meter (SPL). What about that device? Then there is vibration meter. I don't quite understand which one to use, including your suggestion. $\endgroup$ – bms Aug 13 '18 at 4:25
  • $\begingroup$ @bms SPL is based on a microphone. Since you already have a microphone built into a computer or a smartphone. You would want use it only if you needed to make accurate pressure measurements, which, in this case, are not needed. Vibration meter measures acceleration, so, if you attach a vibration sensor to your box, it will give you an accurate picture of the box movements, i.e., more accurate and complete information than a microphone, which would give you just a frequency and an indication of relative intensity of vibrations. Of course, you'll need to acquire such device, set it up, etc. $\endgroup$ – V.F. Aug 13 '18 at 11:08

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