Comment by slow_typist

5 hours ago

There is a paper you can cite if you use phyphox professionally.[1]

In Germany phyphox is quite popular in physics education.

However on android the sampling rate of the acceleration sensor is limited to 50/s. At least if you install through the official app store.

[1] https://iopscience.iop.org/article/10.1088/1361-6552/aac05e

3 comments

slow_typist

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user_7832  3 hours ago

> However on android the sampling rate of the acceleration sensor is limited to 50/s. At least if you install through the official app store.

My understanding is that it’s the same even on iOS (or at least on my iPhone SE 2020). More specifically, the output only measures till 50hz (but the sensor sampling rate is actually 100hz - Nquist, you need double the measured frequency as sampling frequency, yada yada.)

  • user_7832  3 hours ago

    By the way, it’s important to note that measuring vibrating things can permanently damage the OIS VCs in the camera. (See: Apple’s warning against motorcycle mounts.) my iPhone already had a broken OIS so I didn’t mind as much.

Aachen  1 hour ago

Huh? I get 500 Hz here on a Samsung from 2019 and make use of it regularly. Sensor frequency is one of the things I check before buying a new phone, surely newer Android versions haven't killed that with new api restrictions?!

Edit: no, it can't have. Then the phone sensor database would show that since it is built from submissions within Phyphox: https://phyphox.org/sensordb/

I'm not sure what problem you're running into (perhaps a very unusual phone that has only a 50 Hz accelerometer) but Android/Phyphox can do way more than 50 Hz