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Seismometer on iPhone

If you have an iPhone or an iPod Touch, you can download a free app from the Apple App Store called iSeismometer. It is a mini seismometer capable of detecting vibrations in three axes. It is surprisingly sensitive. I place it on the platter of my TT and it can detect my footsteps and the running dishwasher in the kitchen. It should be useful for fine turning vibration control tweaks. No more guess work. Did I mention it is free?
sidssp
10 responses Add your response
kirkus
502 posts
 
Nice find Sidssp, thanks.
mingles
796 posts
 
I just downloaded it. I'm looking forward to playing with it.
lokie's avatar
lokie
528 posts
 
I just downloaded it also. I am in the process of tweaking my isolation and anti vibration issues. Good timing and thanks for the heads up.

buff's avatar
buff
210 posts
 
Thank you,

Great Recommendation
guidocorona
4,298 posts
 
What is the frequency bandwidth and amplitude resolution of the appse? GUido
sidssp OP
1,077 posts
 
Guido,

It can take from 10 to 100 samples per sec, user selectable.

I don't know what the bandwidth is but it does have a high-pass filter you can turn on/off.
sgr's avatar
sgr
689 posts
 
So what is the verdict did the ap help with tuning?
jloveys
226 posts
 
I downloaded all 3 seismometers available for i-phone and tested them on my turntables. None of them are sensitive enough to use for vibration damping tests. Maybe someone has better results than me ? I used all the frequencies settings available.
sgr's avatar
sgr
689 posts
 
Any updates for this thread?
mingles
796 posts
 
iSeismometer doesn't seem to be sensitive enough to give meaningful data for micro-vibrations. Even if it was, you can't do A-B comparisons.
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