iPhone for real-time measurements

[Arbutus]

I thought some folks here may find this interesting, I came across this app for the iPhone which allows the phone to be used to take physical measurements using the phone's sensors.

So far, I have used it for inclination, audio (my dog has a 110dB bark) and vibration monitoring on rotating machinery.

The outputs are raw and its a bit clunky to use, but it might be useful in some situations.

Free from the Apple App Store

 

[David]

I thought some folks here may find this interesting, I came across this app for the iPhone which allows the phone to be used to take physical measurements using the phone's sensors.

So far, I have used it for inclination, audio (my dog has a 110dB bark) and vibration monitoring on rotating machinery.

The outputs are raw and its a bit clunky to use, but it might be useful in some situations.

Free from the Apple App Store

View attachment 59503

Cool, what’s it called?

 

[Arbutus]

Cool, what’s it called?

 

[David]

Sorry I was reading the forum in my phone and I couldn't make out the name.
Here's a link to the developer's page:

Your smartphone is a mobile lab.

Download for free: Follow us: Features Sensors Phyphox allows you to use the sensors in your phone for your experiments. For example, detect the frequency of a pendulum using the accelerometer or measure the Doppler effect using its microphone. Data Export Export your data i

phyphox.org

 

[Susquatch]

I can't really say how they compare, but a while back another member put me onto some similar apps for Android. I have a frequency counter which is cool enough on its own, but there is also a frequency analyser too! Really cool!



Coincidentally, I used the level a few hours ago to set screw holes to clock an auto feed. Levels work, but they don't give you an angle.

 

[PeterT]

and vibration monitoring on rotating machinery.

Can you elaborate on your application/test?
Coincidentally I've been dealing with a resonant vibration on my mill at a certain RPM. Would it be able to somehow 'visualize' that or detect source strength by holding it in different locations?

 

[Arbutus]

Not very scientific! I just laid the iPhone on the mill table and recorded a spectrum at various speeds. Some runs had a flycutter in the chuck to induce vibrations.

There is a better app for visualizing harmonics and modal frequencies though - try (App Store) Vibration Analysis by Dmitriy Kharutskiy.

This is the FFT from the mill at low RPM, with the flycutter mounted, cutting air. Modal frequencies at 20Hz and 37Hz.

 

[Susquatch]

There is a better app for visualizing harmonics and modal frequencies though - try (App Store) Vibration Analysis by Dmitriy Kharutskiy.

Yes, that's the analyser I mentioned earlier.

 

[skippyelwell]

Requires iphone 12 or newer, I'm still back at 6